-
Notifications
You must be signed in to change notification settings - Fork 28
/
SpringCloud(11) 整合Seata实现分布式事务.html
548 lines (525 loc) · 45.6 KB
/
SpringCloud(11) 整合Seata实现分布式事务.html
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>SpringCloud(11) 整合Seata实现分布式事务</title>
<link rel="stylesheet" href="https://stackedit.io/style.css" />
</head>
<body class="stackedit">
<div class="stackedit__html"><p></p><div class="toc"><h3>文章目录</h3><ul><ul><ul><li><a href="#_2">一、前言</a></li><li><a href="#dockercomposeseata_19">二、docker-compose部署seata</a></li><ul><li><a href="#_31">相关配置文件</a></li><ul><li><a href="#dockercomposeseatayml_35">docker-compose-seata.yml</a></li><li><a href="#___seata_71">配置 - - seata</a></li><ul><li><a href="#fileconf_73">file.conf</a></li><li><a href="#registryconf_143">registry.conf</a></li></ul><li><a href="#___nacos_245">配置 - - nacos</a></li><ul><li><a href="#configtxt_247">config.txt</a></li><li><a href="#nacosconfigsh_264">nacos-config.sh</a></li></ul><li><a href="#___seata_397">配置 - - seata数据库</a></li><li><a href="#seatasql_399">seata.sql</a></li><li><a href="#____477">配置 - - 每个微服务关联数据库</a></li><li><a href="#undo_logsql_479">undo_log.sql</a></li></ul></ul><li><a href="#SpringCloudseata_505">三、SpringCloud集成seata</a></li><ul><li><a href="#1pomxml_507">1、`pom.xml`中引入依赖</a></li><li><a href="#2seata_518">2、seata配置</a></li><li><a href="#3_563">3、测试分布式事务</a></li></ul><li><a href="#demo_575">本文案例demo源码</a></li></ul></ul></ul></div><p></p>
<h3><a id="_2"></a>一、前言</h3>
<p>本文将基于以下环境整合seata实现分布式事务</p>
<blockquote>
<p>环境：</p>
<ol>
<li>spring-boot-dependencies 2.3.2.RELEASE</li>
<li>spring-cloud-dependencies Hoxton.SR8</li>
<li>spring-cloud-alibaba-dependencies 2.2.3.RELEASE</li>
<li>spring-cloud-starter-alibaba-nacos-config 2.2.3.RELEASE</li>
<li>spring-cloud-starter-alibaba-nacos-discovery 2.2.3.RELEASE</li>
<li>mysql 5.7</li>
</ol>
</blockquote>
<p><a href="https://seata.io">https://seata.io</a></p>
<blockquote>
<p>tips: 本文属于快速上手入门篇，适用于小白体验seata分布式事务功能<code>^_^</code></p>
</blockquote>
<h3><a id="dockercomposeseata_19"></a>二、docker-compose部署seata</h3>
<blockquote>
<p>tips: 运行seata前需修改相关配置项</p>
</blockquote>
<pre><code class="prism language-shell"><span class="token comment"># 准备</span>
<span class="token function">git</span> clone https://gitee.com/zhengqingya/docker-compose.git
<span class="token builtin class-name">cd</span> docker-compose/Liunx
<span class="token comment"># 运行</span>
docker-compose -f docker-compose-seata.yml -p seata up -d
</code></pre>
<h4><a id="_31"></a>相关配置文件</h4>
<p><img src="https://img-blog.csdnimg.cn/d903c47906ad43f2b65bd36b58f72f1b.png?x-oss-process=image/watermark,type_ZHJvaWRzYW5zZmFsbGJhY2s,shadow_50,text_Q1NETiBA6YOR5riF,size_20,color_FFFFFF,t_70,g_se,x_16" alt="在这里插入图片描述"></p>
<h5><a id="dockercomposeseatayml_35"></a>docker-compose-seata.yml</h5>
<pre><code class="prism language-yml"><span class="token comment"># 可参考 http://seata.io/zh-cn/docs/ops/deploy-by-docker.html</span>
<span class="token key atrule">version</span><span class="token punctuation">:</span> <span class="token string">'3'</span>
<span class="token comment"># 网桥 -> 方便相互通讯</span>
<span class="token key atrule">networks</span><span class="token punctuation">:</span>
<span class="token key atrule">seata</span><span class="token punctuation">:</span>
<span class="token key atrule">driver</span><span class="token punctuation">:</span> bridge
<span class="token key atrule">services</span><span class="token punctuation">:</span>
<span class="token key atrule">seata</span><span class="token punctuation">:</span>
<span class="token key atrule">image</span><span class="token punctuation">:</span> registry.cn<span class="token punctuation">-</span>hangzhou.aliyuncs.com/zhengqing/seata<span class="token punctuation">-</span>server<span class="token punctuation">:</span>1.4.2 <span class="token comment"># 原镜像`seataio/seata-server:1.4.2`</span>
<span class="token key atrule">container_name</span><span class="token punctuation">:</span> seata_server <span class="token comment"># 容器名为'seata_server'</span>
<span class="token key atrule">restart</span><span class="token punctuation">:</span> unless<span class="token punctuation">-</span>stopped <span class="token comment"># 指定容器退出后的重启策略为始终重启，但是不考虑在Docker守护进程启动时就已经停止了的容器</span>
<span class="token key atrule">volumes</span><span class="token punctuation">:</span> <span class="token comment"># 数据卷挂载路径设置,将本机目录映射到容器目录</span>
<span class="token punctuation">-</span> <span class="token string">"./seata/config:/root/seata-config"</span>
<span class="token punctuation">-</span> <span class="token string">"./seata/logs:/root/logs"</span>
<span class="token key atrule">environment</span><span class="token punctuation">:</span> <span class="token comment"># 设置环境变量,相当于docker run命令中的-e</span>
<span class="token key atrule">TZ</span><span class="token punctuation">:</span> Asia/Shanghai
<span class="token key atrule">LANG</span><span class="token punctuation">:</span> en_US.UTF<span class="token punctuation">-</span><span class="token number">8</span>
<span class="token key atrule">SEATA_IP</span><span class="token punctuation">:</span> www.zhengqingya.com <span class="token comment"># TODO 指定seata-server启动的IP, 该IP用于向注册中心注册时使用, 如nacos等</span>
<span class="token key atrule">SEATA_PORT</span><span class="token punctuation">:</span> <span class="token number">8091</span> <span class="token comment"># 指定seata-server启动的端口, 默认为 8091</span>
<span class="token comment"># STORE_MODE: file # 指定seata-server的事务日志存储方式, 支持db ,file,redis(Seata-Server 1.3及以上版本支持), 默认是 file</span>
<span class="token comment"># SERVER_NODE: 1 # 指定seata-server节点ID, 如 1,2,3..., 默认为 根据ip生成</span>
<span class="token comment"># SEATA_ENV: dev # 指定 seata-server 运行环境, 如 dev, test 等, 服务启动时会使用 registry-dev.conf 这样的配置</span>
<span class="token comment"># 指定配置文件位置, 如 file:/root/registry, 将会加载 /root/registry.conf 作为配置文件，</span>
<span class="token comment"># 如果需要同时指定 file.conf文件，需要将registry.conf的config.file.name的值改为类似file:/root/file.conf：</span>
<span class="token key atrule">SEATA_CONFIG_NAME</span><span class="token punctuation">:</span> file<span class="token punctuation">:</span>/root/seata<span class="token punctuation">-</span>config/registry
<span class="token key atrule">ports</span><span class="token punctuation">:</span> <span class="token comment"># 映射端口</span>
<span class="token punctuation">-</span> <span class="token string">"8091:8091"</span>
<span class="token key atrule">networks</span><span class="token punctuation">:</span>
<span class="token punctuation">-</span> seata
</code></pre>
<h5><a id="___seata_71"></a>配置 - - seata</h5>
<h6><a id="fileconf_73"></a>file.conf</h6>
<pre><code>## transaction log store, only used in seata-server
store {
## store mode: file、db、redis
mode = "db"
## rsa decryption public key
publicKey = ""
## file store property
file {
## store location dir
dir = "sessionStore"
# branch session size , if exceeded first try compress lockkey, still exceeded throws exceptions
maxBranchSessionSize = 16384
# globe session size , if exceeded throws exceptions
maxGlobalSessionSize = 512
# file buffer size , if exceeded allocate new buffer
fileWriteBufferCacheSize = 16384
# when recover batch read size
sessionReloadReadSize = 100
# async, sync
flushDiskMode = async
}
## database store property
db {
## the implement of javax.sql.DataSource, such as DruidDataSource(druid)/BasicDataSource(dbcp)/HikariDataSource(hikari) etc.
datasource = "druid"
## mysql/oracle/postgresql/h2/oceanbase etc.
dbType = "mysql"
driverClassName = "com.mysql.jdbc.Driver"
## if using mysql to store the data, recommend add rewriteBatchedStatements=true in jdbc connection param
url = "jdbc:mysql://www.zhengqingya.com:3306/seata?rewriteBatchedStatements=true"
user = "root"
password = "root"
minConn = 5
maxConn = 100
globalTable = "global_table"
branchTable = "branch_table"
lockTable = "lock_table"
queryLimit = 100
maxWait = 5000
}
## redis store property
redis {
## redis mode: single、sentinel
mode = "single"
## single mode property
single {
host = "127.0.0.1"
port = "6379"
}
## sentinel mode property
sentinel {
masterName = ""
## such as "10.28.235.65:26379,10.28.235.65:26380,10.28.235.65:26381"
sentinelHosts = ""
}
password = ""
database = "0"
minConn = 1
maxConn = 10
maxTotal = 100
queryLimit = 100
}
}
</code></pre>
<h6><a id="registryconf_143"></a>registry.conf</h6>
<pre><code>registry {
# file 、nacos 、eureka、redis、zk、consul、etcd3、sofa
type = "nacos"
nacos {
application = "seata-server"
serverAddr = "www.zhengqingya.com:8848"
group = "SEATA_GROUP"
namespace = "test"
cluster = "default"
username = "nacos"
password = "nacos"
}
eureka {
serviceUrl = "http://localhost:8761/eureka"
application = "default"
weight = "1"
}
redis {
serverAddr = "localhost:6379"
db = 0
password = ""
cluster = "default"
timeout = 0
}
zk {
cluster = "default"
serverAddr = "127.0.0.1:2181"
sessionTimeout = 6000
connectTimeout = 2000
username = ""
password = ""
}
consul {
cluster = "default"
serverAddr = "127.0.0.1:8500"
aclToken = ""
}
etcd3 {
cluster = "default"
serverAddr = "http://localhost:2379"
}
sofa {
serverAddr = "127.0.0.1:9603"
application = "default"
region = "DEFAULT_ZONE"
datacenter = "DefaultDataCenter"
cluster = "default"
group = "SEATA_GROUP"
addressWaitTime = "3000"
}
file {
name = "file.conf"
}
}
config {
# file、nacos 、apollo、zk、consul、etcd3
type = "nacos"
nacos {
serverAddr = "www.zhengqingya.com:8848"
namespace = "test"
group = "SEATA_GROUP"
username = "nacos"
password = "nacos"
dataId = "seataServer.properties"
}
consul {
serverAddr = "127.0.0.1:8500"
aclToken = ""
}
apollo {
appId = "seata-server"
## apolloConfigService will cover apolloMeta
apolloMeta = "http://192.168.1.204:8801"
apolloConfigService = "http://192.168.1.204:8080"
namespace = "application"
apolloAccesskeySecret = ""
cluster = "seata"
}
zk {
serverAddr = "127.0.0.1:2181"
sessionTimeout = 6000
connectTimeout = 2000
username = ""
password = ""
nodePath = "/seata/seata.properties"
}
etcd3 {
serverAddr = "http://localhost:2379"
}
file {
name = "file.conf"
}
}
</code></pre>
<h5><a id="___nacos_245"></a>配置 - - nacos</h5>
<h6><a id="configtxt_247"></a>config.txt</h6>
<blockquote>
<p>https://github.com/seata/seata/blob/develop/script/config-center/config.txt</p>
</blockquote>
<pre><code>store.mode=db
store.db.datasource=druid
store.db.dbType=mysql
store.db.driverClassName=com.mysql.jdbc.Driver
store.db.url=jdbc:mysql://www.zhengqingya.com:3306/seata?useUnicode=true&rewriteBatchedStatements=true
store.db.user=root
store.db.password=root
service.vgroupMapping.my_test_tx_group=default
service.vgroupMapping.user-tx-group=default
service.vgroupMapping.order-tx-group=default
</code></pre>
<h6><a id="nacosconfigsh_264"></a>nacos-config.sh</h6>
<blockquote>
<p>https://github.com/seata/seata/blob/develop/script/config-center/nacos/nacos-config.sh</p>
</blockquote>
<pre><code>#!/usr/bin/env bash
# Copyright 1999-2019 Seata.io Group.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at、
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
while getopts ":h:p:g:t:u:w:" opt
do
case $opt in
h)
host=$OPTARG
;;
p)
port=$OPTARG
;;
g)
group=$OPTARG
;;
t)
tenant=$OPTARG
;;
u)
username=$OPTARG
;;
w)
password=$OPTARG
;;
?)
echo " USAGE OPTION: $0 [-h host] [-p port] [-g group] [-t tenant] [-u username] [-w password] "
exit 1
;;
esac
done
urlencode() {
for ((i=0; i < ${#1}; i++))
do
char="${1:$i:1}"
case $char in
[a-zA-Z0-9.~_-]) printf $char ;;
*) printf '%%%02X' "'$char" ;;
esac
done
}
if [[ -z ${host} ]]; then
host=localhost
fi
if [[ -z ${port} ]]; then
port=8848
fi
if [[ -z ${group} ]]; then
group="SEATA_GROUP"
fi
if [[ -z ${tenant} ]]; then
tenant=""
fi
if [[ -z ${username} ]]; then
username=""
fi
if [[ -z ${password} ]]; then
password=""
fi
nacosAddr=$host:$port
contentType="content-type:application/json;charset=UTF-8"
echo "set nacosAddr=$nacosAddr"
echo "set group=$group"
failCount=0
tempLog=$(mktemp -u)
function addConfig() {
curl -X POST -H "${contentType}" "http://$nacosAddr/nacos/v1/cs/configs?dataId=$(urlencode $1)&group=$group&content=$(urlencode $2)&tenant=$tenant&username=$username&password=$password" >"${tempLog}" 2>/dev/null
if [[ -z $(cat "${tempLog}") ]]; then
echo " Please check the cluster status. "
exit 1
fi
if [[ $(cat "${tempLog}") =~ "true" ]]; then
echo "Set $1=$2 successfully "
else
echo "Set $1=$2 failure "
(( failCount++ ))
fi
}
count=0
for line in $(cat $(dirname "$PWD")/config.txt | sed s/[[:space:]]//g); do
(( count++ ))
key=${line%%=*}
value=${line#*=}
addConfig "${key}" "${value}"
done
echo "========================================================================="
echo " Complete initialization parameters, total-count:$count , failure-count:$failCount "
echo "========================================================================="
if [[ ${failCount} -eq 0 ]]; then
echo " Init nacos config finished, please start seata-server. "
else
echo " init nacos config fail. "
fi
</code></pre>
<p>运行命令将config.txt配置推送到nacos中</p>
<pre><code class="prism language-shell"><span class="token comment"># -h -p => 指定nacos的ip和端口</span>
<span class="token comment"># -g => 指定配置的分组</span>
<span class="token comment"># -t => 指定命名空间id</span>
<span class="token comment"># -u -w => 指定nacos的用户名和密码</span>
<span class="token function">sh</span> nacos-config.sh -h <span class="token number">127.0</span>.0.1 -p <span class="token number">8848</span> -g SEATA_GROUP -t <span class="token builtin class-name">test</span> -u nacos -w nacos
</code></pre>
<p><img src="https://img-blog.csdnimg.cn/26d13169e2214763bd9aa813ecfbe408.png?x-oss-process=image/watermark,type_ZHJvaWRzYW5zZmFsbGJhY2s,shadow_50,text_Q1NETiBA6YOR5riF,size_20,color_FFFFFF,t_70,g_se,x_16" alt="在这里插入图片描述"></p>
<h5><a id="___seata_397"></a>配置 - - seata数据库</h5>
<h5><a id="seatasql_399"></a>seata.sql</h5>
<blockquote>
<p>https://github.com/seata/seata/blob/develop/script/server/db/mysql.sql</p>
</blockquote>
<pre><code class="prism language-sql"><span class="token comment">-- -------------------------------- The script used when storeMode is 'db' --------------------------------</span>
<span class="token comment">-- the table to store GlobalSession data</span>
<span class="token keyword">CREATE</span> <span class="token keyword">TABLE</span> <span class="token keyword">IF</span> <span class="token operator">NOT</span> <span class="token keyword">EXISTS</span> <span class="token punctuation">`</span>global_table<span class="token punctuation">`</span>
<span class="token punctuation">(</span>
<span class="token punctuation">`</span>xid<span class="token punctuation">`</span> <span class="token keyword">VARCHAR</span><span class="token punctuation">(</span><span class="token number">128</span><span class="token punctuation">)</span> <span class="token operator">NOT</span> <span class="token boolean">NULL</span><span class="token punctuation">,</span>
<span class="token punctuation">`</span>transaction_id<span class="token punctuation">`</span> <span class="token keyword">BIGINT</span><span class="token punctuation">,</span>
<span class="token punctuation">`</span><span class="token keyword">status</span><span class="token punctuation">`</span> <span class="token keyword">TINYINT</span> <span class="token operator">NOT</span> <span class="token boolean">NULL</span><span class="token punctuation">,</span>
<span class="token punctuation">`</span>application_id<span class="token punctuation">`</span> <span class="token keyword">VARCHAR</span><span class="token punctuation">(</span><span class="token number">32</span><span class="token punctuation">)</span><span class="token punctuation">,</span>
<span class="token punctuation">`</span>transaction_service_group<span class="token punctuation">`</span> <span class="token keyword">VARCHAR</span><span class="token punctuation">(</span><span class="token number">32</span><span class="token punctuation">)</span><span class="token punctuation">,</span>
<span class="token punctuation">`</span>transaction_name<span class="token punctuation">`</span> <span class="token keyword">VARCHAR</span><span class="token punctuation">(</span><span class="token number">128</span><span class="token punctuation">)</span><span class="token punctuation">,</span>
<span class="token punctuation">`</span>timeout<span class="token punctuation">`</span> <span class="token keyword">INT</span><span class="token punctuation">,</span>
<span class="token punctuation">`</span>begin_time<span class="token punctuation">`</span> <span class="token keyword">BIGINT</span><span class="token punctuation">,</span>
<span class="token punctuation">`</span>application_data<span class="token punctuation">`</span> <span class="token keyword">VARCHAR</span><span class="token punctuation">(</span><span class="token number">2000</span><span class="token punctuation">)</span><span class="token punctuation">,</span>
<span class="token punctuation">`</span>gmt_create<span class="token punctuation">`</span> <span class="token keyword">DATETIME</span><span class="token punctuation">,</span>
<span class="token punctuation">`</span>gmt_modified<span class="token punctuation">`</span> <span class="token keyword">DATETIME</span><span class="token punctuation">,</span>
<span class="token keyword">PRIMARY</span> <span class="token keyword">KEY</span> <span class="token punctuation">(</span><span class="token punctuation">`</span>xid<span class="token punctuation">`</span><span class="token punctuation">)</span><span class="token punctuation">,</span>
<span class="token keyword">KEY</span> <span class="token punctuation">`</span>idx_gmt_modified_status<span class="token punctuation">`</span> <span class="token punctuation">(</span><span class="token punctuation">`</span>gmt_modified<span class="token punctuation">`</span><span class="token punctuation">,</span> <span class="token punctuation">`</span><span class="token keyword">status</span><span class="token punctuation">`</span><span class="token punctuation">)</span><span class="token punctuation">,</span>
<span class="token keyword">KEY</span> <span class="token punctuation">`</span>idx_transaction_id<span class="token punctuation">`</span> <span class="token punctuation">(</span><span class="token punctuation">`</span>transaction_id<span class="token punctuation">`</span><span class="token punctuation">)</span>
<span class="token punctuation">)</span> <span class="token keyword">ENGINE</span> <span class="token operator">=</span> <span class="token keyword">InnoDB</span>
<span class="token keyword">DEFAULT</span> <span class="token keyword">CHARSET</span> <span class="token operator">=</span> utf8<span class="token punctuation">;</span>
<span class="token comment">-- the table to store BranchSession data</span>
<span class="token keyword">CREATE</span> <span class="token keyword">TABLE</span> <span class="token keyword">IF</span> <span class="token operator">NOT</span> <span class="token keyword">EXISTS</span> <span class="token punctuation">`</span>branch_table<span class="token punctuation">`</span>
<span class="token punctuation">(</span>
<span class="token punctuation">`</span>branch_id<span class="token punctuation">`</span> <span class="token keyword">BIGINT</span> <span class="token operator">NOT</span> <span class="token boolean">NULL</span><span class="token punctuation">,</span>
<span class="token punctuation">`</span>xid<span class="token punctuation">`</span> <span class="token keyword">VARCHAR</span><span class="token punctuation">(</span><span class="token number">128</span><span class="token punctuation">)</span> <span class="token operator">NOT</span> <span class="token boolean">NULL</span><span class="token punctuation">,</span>
<span class="token punctuation">`</span>transaction_id<span class="token punctuation">`</span> <span class="token keyword">BIGINT</span><span class="token punctuation">,</span>
<span class="token punctuation">`</span>resource_group_id<span class="token punctuation">`</span> <span class="token keyword">VARCHAR</span><span class="token punctuation">(</span><span class="token number">32</span><span class="token punctuation">)</span><span class="token punctuation">,</span>
<span class="token punctuation">`</span>resource_id<span class="token punctuation">`</span> <span class="token keyword">VARCHAR</span><span class="token punctuation">(</span><span class="token number">256</span><span class="token punctuation">)</span><span class="token punctuation">,</span>
<span class="token punctuation">`</span>branch_type<span class="token punctuation">`</span> <span class="token keyword">VARCHAR</span><span class="token punctuation">(</span><span class="token number">8</span><span class="token punctuation">)</span><span class="token punctuation">,</span>
<span class="token punctuation">`</span><span class="token keyword">status</span><span class="token punctuation">`</span> <span class="token keyword">TINYINT</span><span class="token punctuation">,</span>
<span class="token punctuation">`</span>client_id<span class="token punctuation">`</span> <span class="token keyword">VARCHAR</span><span class="token punctuation">(</span><span class="token number">64</span><span class="token punctuation">)</span><span class="token punctuation">,</span>
<span class="token punctuation">`</span>application_data<span class="token punctuation">`</span> <span class="token keyword">VARCHAR</span><span class="token punctuation">(</span><span class="token number">2000</span><span class="token punctuation">)</span><span class="token punctuation">,</span>
<span class="token punctuation">`</span>gmt_create<span class="token punctuation">`</span> <span class="token keyword">DATETIME</span><span class="token punctuation">(</span><span class="token number">6</span><span class="token punctuation">)</span><span class="token punctuation">,</span>
<span class="token punctuation">`</span>gmt_modified<span class="token punctuation">`</span> <span class="token keyword">DATETIME</span><span class="token punctuation">(</span><span class="token number">6</span><span class="token punctuation">)</span><span class="token punctuation">,</span>
<span class="token keyword">PRIMARY</span> <span class="token keyword">KEY</span> <span class="token punctuation">(</span><span class="token punctuation">`</span>branch_id<span class="token punctuation">`</span><span class="token punctuation">)</span><span class="token punctuation">,</span>
<span class="token keyword">KEY</span> <span class="token punctuation">`</span>idx_xid<span class="token punctuation">`</span> <span class="token punctuation">(</span><span class="token punctuation">`</span>xid<span class="token punctuation">`</span><span class="token punctuation">)</span>
<span class="token punctuation">)</span> <span class="token keyword">ENGINE</span> <span class="token operator">=</span> <span class="token keyword">InnoDB</span>
<span class="token keyword">DEFAULT</span> <span class="token keyword">CHARSET</span> <span class="token operator">=</span> utf8<span class="token punctuation">;</span>
<span class="token comment">-- the table to store lock data</span>
<span class="token keyword">CREATE</span> <span class="token keyword">TABLE</span> <span class="token keyword">IF</span> <span class="token operator">NOT</span> <span class="token keyword">EXISTS</span> <span class="token punctuation">`</span>lock_table<span class="token punctuation">`</span>
<span class="token punctuation">(</span>
<span class="token punctuation">`</span>row_key<span class="token punctuation">`</span> <span class="token keyword">VARCHAR</span><span class="token punctuation">(</span><span class="token number">128</span><span class="token punctuation">)</span> <span class="token operator">NOT</span> <span class="token boolean">NULL</span><span class="token punctuation">,</span>
<span class="token punctuation">`</span>xid<span class="token punctuation">`</span> <span class="token keyword">VARCHAR</span><span class="token punctuation">(</span><span class="token number">128</span><span class="token punctuation">)</span><span class="token punctuation">,</span>
<span class="token punctuation">`</span>transaction_id<span class="token punctuation">`</span> <span class="token keyword">BIGINT</span><span class="token punctuation">,</span>
<span class="token punctuation">`</span>branch_id<span class="token punctuation">`</span> <span class="token keyword">BIGINT</span> <span class="token operator">NOT</span> <span class="token boolean">NULL</span><span class="token punctuation">,</span>
<span class="token punctuation">`</span>resource_id<span class="token punctuation">`</span> <span class="token keyword">VARCHAR</span><span class="token punctuation">(</span><span class="token number">256</span><span class="token punctuation">)</span><span class="token punctuation">,</span>
<span class="token punctuation">`</span>table_name<span class="token punctuation">`</span> <span class="token keyword">VARCHAR</span><span class="token punctuation">(</span><span class="token number">32</span><span class="token punctuation">)</span><span class="token punctuation">,</span>
<span class="token punctuation">`</span>pk<span class="token punctuation">`</span> <span class="token keyword">VARCHAR</span><span class="token punctuation">(</span><span class="token number">36</span><span class="token punctuation">)</span><span class="token punctuation">,</span>
<span class="token punctuation">`</span>gmt_create<span class="token punctuation">`</span> <span class="token keyword">DATETIME</span><span class="token punctuation">,</span>
<span class="token punctuation">`</span>gmt_modified<span class="token punctuation">`</span> <span class="token keyword">DATETIME</span><span class="token punctuation">,</span>
<span class="token keyword">PRIMARY</span> <span class="token keyword">KEY</span> <span class="token punctuation">(</span><span class="token punctuation">`</span>row_key<span class="token punctuation">`</span><span class="token punctuation">)</span><span class="token punctuation">,</span>
<span class="token keyword">KEY</span> <span class="token punctuation">`</span>idx_branch_id<span class="token punctuation">`</span> <span class="token punctuation">(</span><span class="token punctuation">`</span>branch_id<span class="token punctuation">`</span><span class="token punctuation">)</span>
<span class="token punctuation">)</span> <span class="token keyword">ENGINE</span> <span class="token operator">=</span> <span class="token keyword">InnoDB</span>
<span class="token keyword">DEFAULT</span> <span class="token keyword">CHARSET</span> <span class="token operator">=</span> utf8<span class="token punctuation">;</span>
<span class="token keyword">CREATE</span> <span class="token keyword">TABLE</span> <span class="token keyword">IF</span> <span class="token operator">NOT</span> <span class="token keyword">EXISTS</span> <span class="token punctuation">`</span>distributed_lock<span class="token punctuation">`</span>
<span class="token punctuation">(</span>
<span class="token punctuation">`</span>lock_key<span class="token punctuation">`</span> <span class="token keyword">CHAR</span><span class="token punctuation">(</span><span class="token number">20</span><span class="token punctuation">)</span> <span class="token operator">NOT</span> <span class="token boolean">NULL</span><span class="token punctuation">,</span>
<span class="token punctuation">`</span>lock_value<span class="token punctuation">`</span> <span class="token keyword">VARCHAR</span><span class="token punctuation">(</span><span class="token number">20</span><span class="token punctuation">)</span> <span class="token operator">NOT</span> <span class="token boolean">NULL</span><span class="token punctuation">,</span>
<span class="token punctuation">`</span>expire<span class="token punctuation">`</span> <span class="token keyword">BIGINT</span><span class="token punctuation">,</span>
<span class="token keyword">primary</span> <span class="token keyword">key</span> <span class="token punctuation">(</span><span class="token punctuation">`</span>lock_key<span class="token punctuation">`</span><span class="token punctuation">)</span>
<span class="token punctuation">)</span> <span class="token keyword">ENGINE</span> <span class="token operator">=</span> <span class="token keyword">InnoDB</span>
<span class="token keyword">DEFAULT</span> <span class="token keyword">CHARSET</span> <span class="token operator">=</span> utf8mb4<span class="token punctuation">;</span>
<span class="token keyword">INSERT</span> <span class="token keyword">INTO</span> <span class="token punctuation">`</span>distributed_lock<span class="token punctuation">`</span> <span class="token punctuation">(</span>lock_key<span class="token punctuation">,</span> lock_value<span class="token punctuation">,</span> expire<span class="token punctuation">)</span> <span class="token keyword">VALUES</span> <span class="token punctuation">(</span><span class="token string">'AsyncCommitting'</span><span class="token punctuation">,</span> <span class="token string">' '</span><span class="token punctuation">,</span> <span class="token number">0</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
<span class="token keyword">INSERT</span> <span class="token keyword">INTO</span> <span class="token punctuation">`</span>distributed_lock<span class="token punctuation">`</span> <span class="token punctuation">(</span>lock_key<span class="token punctuation">,</span> lock_value<span class="token punctuation">,</span> expire<span class="token punctuation">)</span> <span class="token keyword">VALUES</span> <span class="token punctuation">(</span><span class="token string">'RetryCommitting'</span><span class="token punctuation">,</span> <span class="token string">' '</span><span class="token punctuation">,</span> <span class="token number">0</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
<span class="token keyword">INSERT</span> <span class="token keyword">INTO</span> <span class="token punctuation">`</span>distributed_lock<span class="token punctuation">`</span> <span class="token punctuation">(</span>lock_key<span class="token punctuation">,</span> lock_value<span class="token punctuation">,</span> expire<span class="token punctuation">)</span> <span class="token keyword">VALUES</span> <span class="token punctuation">(</span><span class="token string">'RetryRollbacking'</span><span class="token punctuation">,</span> <span class="token string">' '</span><span class="token punctuation">,</span> <span class="token number">0</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
<span class="token keyword">INSERT</span> <span class="token keyword">INTO</span> <span class="token punctuation">`</span>distributed_lock<span class="token punctuation">`</span> <span class="token punctuation">(</span>lock_key<span class="token punctuation">,</span> lock_value<span class="token punctuation">,</span> expire<span class="token punctuation">)</span> <span class="token keyword">VALUES</span> <span class="token punctuation">(</span><span class="token string">'TxTimeoutCheck'</span><span class="token punctuation">,</span> <span class="token string">' '</span><span class="token punctuation">,</span> <span class="token number">0</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
</code></pre>
<h5><a id="____477"></a>配置 - - 每个微服务关联数据库</h5>
<h5><a id="undo_logsql_479"></a>undo_log.sql</h5>
<blockquote>
<p>tips: 需微服务 - - 每个服务中相应的数据库下存在此表</p>
</blockquote>
<pre><code class="prism language-sql"><span class="token keyword">CREATE</span> <span class="token keyword">TABLE</span> <span class="token punctuation">`</span>undo_log<span class="token punctuation">`</span>
<span class="token punctuation">(</span>
<span class="token punctuation">`</span>id<span class="token punctuation">`</span> <span class="token keyword">bigint</span><span class="token punctuation">(</span><span class="token number">20</span><span class="token punctuation">)</span> <span class="token operator">NOT</span> <span class="token boolean">NULL</span> <span class="token keyword">AUTO_INCREMENT</span><span class="token punctuation">,</span>
<span class="token punctuation">`</span>branch_id<span class="token punctuation">`</span> <span class="token keyword">bigint</span><span class="token punctuation">(</span><span class="token number">20</span><span class="token punctuation">)</span> <span class="token operator">NOT</span> <span class="token boolean">NULL</span><span class="token punctuation">,</span>
<span class="token punctuation">`</span>xid<span class="token punctuation">`</span> <span class="token keyword">varchar</span><span class="token punctuation">(</span><span class="token number">100</span><span class="token punctuation">)</span> <span class="token operator">NOT</span> <span class="token boolean">NULL</span><span class="token punctuation">,</span>
<span class="token punctuation">`</span>context<span class="token punctuation">`</span> <span class="token keyword">varchar</span><span class="token punctuation">(</span><span class="token number">128</span><span class="token punctuation">)</span> <span class="token operator">NOT</span> <span class="token boolean">NULL</span><span class="token punctuation">,</span>
<span class="token punctuation">`</span>rollback_info<span class="token punctuation">`</span> <span class="token keyword">longblob</span> <span class="token operator">NOT</span> <span class="token boolean">NULL</span><span class="token punctuation">,</span>
<span class="token punctuation">`</span>log_status<span class="token punctuation">`</span> <span class="token keyword">int</span><span class="token punctuation">(</span><span class="token number">11</span><span class="token punctuation">)</span> <span class="token operator">NOT</span> <span class="token boolean">NULL</span><span class="token punctuation">,</span>
<span class="token punctuation">`</span>log_created<span class="token punctuation">`</span> <span class="token keyword">datetime</span> <span class="token operator">NOT</span> <span class="token boolean">NULL</span><span class="token punctuation">,</span>
<span class="token punctuation">`</span>log_modified<span class="token punctuation">`</span> <span class="token keyword">datetime</span> <span class="token operator">NOT</span> <span class="token boolean">NULL</span><span class="token punctuation">,</span>
<span class="token punctuation">`</span>ext<span class="token punctuation">`</span> <span class="token keyword">varchar</span><span class="token punctuation">(</span><span class="token number">100</span><span class="token punctuation">)</span> <span class="token keyword">DEFAULT</span> <span class="token boolean">NULL</span><span class="token punctuation">,</span>
<span class="token keyword">PRIMARY</span> <span class="token keyword">KEY</span> <span class="token punctuation">(</span><span class="token punctuation">`</span>id<span class="token punctuation">`</span><span class="token punctuation">)</span> <span class="token keyword">USING</span> <span class="token keyword">BTREE</span><span class="token punctuation">,</span>
<span class="token keyword">UNIQUE</span> <span class="token keyword">KEY</span> <span class="token punctuation">`</span>ux_undo_log<span class="token punctuation">`</span> <span class="token punctuation">(</span><span class="token punctuation">`</span>xid<span class="token punctuation">`</span><span class="token punctuation">,</span><span class="token punctuation">`</span>branch_id<span class="token punctuation">`</span><span class="token punctuation">)</span> <span class="token keyword">USING</span> <span class="token keyword">BTREE</span>
<span class="token punctuation">)</span> <span class="token keyword">ENGINE</span><span class="token operator">=</span><span class="token keyword">InnoDB</span> <span class="token keyword">AUTO_INCREMENT</span><span class="token operator">=</span><span class="token number">110</span> <span class="token keyword">DEFAULT</span> <span class="token keyword">CHARSET</span><span class="token operator">=</span>utf8 ROW_FORMAT<span class="token operator">=</span>DYNAMIC<span class="token punctuation">;</span>
</code></pre>
<p>修改配置后，运行seata，查看nacos注册信息</p>
<p><img src="https://img-blog.csdnimg.cn/c578c5b68f8f492d9cc95bb79e054ff0.png?x-oss-process=image/watermark,type_ZHJvaWRzYW5zZmFsbGJhY2s,shadow_50,text_Q1NETiBA6YOR5riF,size_20,color_FFFFFF,t_70,g_se,x_16" alt="在这里插入图片描述"></p>
<h3><a id="SpringCloudseata_505"></a>三、SpringCloud集成seata</h3>
<h4><a id="1pomxml_507"></a>1、<code>pom.xml</code>中引入依赖</h4>
<pre><code class="prism language-xml"><span class="token comment"><!-- seata --></span>
<span class="token comment"><!-- https://mvnrepository.com/artifact/com.alibaba.cloud/spring-cloud-starter-alibaba-seata --></span>
<span class="token tag"><span class="token tag"><span class="token punctuation"><</span>dependency</span><span class="token punctuation">></span></span>
<span class="token tag"><span class="token tag"><span class="token punctuation"><</span>groupId</span><span class="token punctuation">></span></span>com.alibaba.cloud<span class="token tag"><span class="token tag"><span class="token punctuation"></</span>groupId</span><span class="token punctuation">></span></span>
<span class="token tag"><span class="token tag"><span class="token punctuation"><</span>artifactId</span><span class="token punctuation">></span></span>spring-cloud-starter-alibaba-seata<span class="token tag"><span class="token tag"><span class="token punctuation"></</span>artifactId</span><span class="token punctuation">></span></span>
<span class="token tag"><span class="token tag"><span class="token punctuation"></</span>dependency</span><span class="token punctuation">></span></span>
</code></pre>
<h4><a id="2seata_518"></a>2、seata配置</h4>
<p><img src="https://img-blog.csdnimg.cn/79f2955f5c044279adac3924fc7cadd0.png?x-oss-process=image/watermark,type_ZHJvaWRzYW5zZmFsbGJhY2s,shadow_50,text_Q1NETiBA6YOR5riF,size_20,color_FFFFFF,t_70,g_se,x_16" alt="在这里插入图片描述"></p>
<blockquote>
<p>tips: 这里只贴出其中一个user服务的配置</p>
</blockquote>
<pre><code class="prism language-yml"><span class="token comment"># seata配置</span>
<span class="token key atrule">seata</span><span class="token punctuation">:</span>
<span class="token comment"># 是否开启seata</span>
<span class="token key atrule">enabled</span><span class="token punctuation">:</span> <span class="token boolean important">true</span>
<span class="token comment"># Seata 应用编号，默认为 ${spring.application.name}</span>
<span class="token key atrule">application-id</span><span class="token punctuation">:</span> $<span class="token punctuation">{</span>spring.application.name<span class="token punctuation">}</span>
<span class="token comment"># Seata 事务组编号，用于 TC 集群名</span>
<span class="token key atrule">tx-service-group</span><span class="token punctuation">:</span> $<span class="token punctuation">{</span>spring.application.name<span class="token punctuation">}</span><span class="token punctuation">-</span>tx<span class="token punctuation">-</span>group
<span class="token comment"># 自动代理</span>
<span class="token key atrule">enable-auto-data-source-proxy</span><span class="token punctuation">:</span> <span class="token boolean important">true</span>
<span class="token comment"># 服务配置项</span>
<span class="token key atrule">service</span><span class="token punctuation">:</span>
<span class="token comment"># 虚拟组和分组的映射</span>
<span class="token key atrule">vgroup-mapping</span><span class="token punctuation">:</span>
<span class="token key atrule">user-tx-group</span><span class="token punctuation">:</span> default
<span class="token comment"># 分组和 Seata 服务的映射</span>
<span class="token key atrule">grouplist</span><span class="token punctuation">:</span>
<span class="token key atrule">default</span><span class="token punctuation">:</span> 127.0.0.1<span class="token punctuation">:</span><span class="token number">8091</span>
<span class="token key atrule">config</span><span class="token punctuation">:</span>
<span class="token key atrule">type</span><span class="token punctuation">:</span> nacos
<span class="token key atrule">nacos</span><span class="token punctuation">:</span>
<span class="token key atrule">serverAddr</span><span class="token punctuation">:</span> 127.0.0.1<span class="token punctuation">:</span><span class="token number">8848</span>
<span class="token key atrule">group</span><span class="token punctuation">:</span> SEATA_GROUP
<span class="token key atrule">namespace</span><span class="token punctuation">:</span> $<span class="token punctuation">{</span>spring.profiles.active<span class="token punctuation">}</span>
<span class="token key atrule">username</span><span class="token punctuation">:</span> nacos
<span class="token key atrule">password</span><span class="token punctuation">:</span> nacos
<span class="token key atrule">registry</span><span class="token punctuation">:</span>
<span class="token key atrule">type</span><span class="token punctuation">:</span> nacos
<span class="token key atrule">nacos</span><span class="token punctuation">:</span>
<span class="token key atrule">application</span><span class="token punctuation">:</span> seata<span class="token punctuation">-</span>server
<span class="token key atrule">server-addr</span><span class="token punctuation">:</span> 127.0.0.1<span class="token punctuation">:</span><span class="token number">8848</span>
<span class="token key atrule">group</span><span class="token punctuation">:</span> SEATA_GROUP
<span class="token key atrule">namespace</span><span class="token punctuation">:</span> $<span class="token punctuation">{</span>spring.profiles.active<span class="token punctuation">}</span>
<span class="token key atrule">username</span><span class="token punctuation">:</span> nacos
<span class="token key atrule">password</span><span class="token punctuation">:</span> nacos
</code></pre>
<h4><a id="3_563"></a>3、测试分布式事务</h4>
<p>在主调用方加上注解<code>@GlobalTransactional</code> 即可</p>
<p><img src="https://img-blog.csdnimg.cn/58d734432b5c42968a99e72a1419a01b.png?x-oss-process=image/watermark,type_ZHJvaWRzYW5zZmFsbGJhY2s,shadow_50,text_Q1NETiBA6YOR5riF,size_20,color_FFFFFF,t_70,g_se,x_16" alt="在这里插入图片描述"></p>
<p>可访问接口文档 <a href="http://127.0.0.1:10010/doc.html">http://127.0.0.1:10010/doc.html</a> 调用测试seata分布式事务</p>
<blockquote>
<p>tips: 小编在测试的时候，发现事务回滚有所延时，即需要等一会儿，因程序异常导致的脏数据才会回滚~</p>
</blockquote>
<p><img src="https://img-blog.csdnimg.cn/e05d527cfc49440687d1da4a31a7a0dd.png?x-oss-process=image/watermark,type_ZHJvaWRzYW5zZmFsbGJhY2s,shadow_50,text_Q1NETiBA6YOR5riF,size_20,color_FFFFFF,t_70,g_se,x_16" alt="在这里插入图片描述"></p>
<h3><a id="demo_575"></a>本文案例demo源码</h3>
<p><a href="https://gitee.com/zhengqingya/java-workspace">https://gitee.com/zhengqingya/java-workspace</a></p>
<hr>
<blockquote>
<p>今日分享语句：<br>
做最好的今天，回顾最好的昨天，迎接最美好的明天。</p>
</blockquote>
</div>
</body>
</html>