springcloud整合分布式事务LCN
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2020-12-24 00:48
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作者 | Neil-King
来源 | urlify.cn/ZRruey
一、创建eureka注册中心
1
2 1.8
3 Greenwich.SR2
4
5
6
7
8 org.springframework.boot
9 spring-boot-starter-web
10
11
12 org.springframework.cloud
13 spring-cloud-starter-netflix-eureka-server
14
15
16
17 org.springframework.boot
18 spring-boot-starter-test
19 test
20
21
22
23
24
25
26 org.springframework.cloud
27 spring-cloud-dependencies
28 ${spring-cloud.version}
29 <type>pomtype>
30 import
31
32
33
server.port=8761
#禁止将自己注册到注册中心
eureka.client.register-with-eureka=false
eureka.instance.hostname=localhost
eureka.client.fetch-registry=false
eureka.client.service-url.defaultZone=http://${eureka.instance.hostname}:${server.port}/eureka/
eureka.server.enable-self-preservation=false
spring.cloud.config.discovery.enabled=true
@SpringBootApplication
@EnableEurekaServer
public class SpringcloudEurekaApplication {
public static void main(String[] args) {
SpringApplication.run(SpringcloudEurekaApplication.class, args);
}
}
二、创建微服务A
1
2 1.8
3 Greenwich.SR2
4
5
6
7
8 org.springframework.boot
9 spring-boot-starter-data-jpa
10
11
12 org.springframework.boot
13 spring-boot-starter-web
14
15
16 org.springframework.cloud
17 spring-cloud-starter-netflix-eureka-client
18
19
20
21 mysql
22 mysql-connector-java
23 runtime
24
25
26 org.springframework.boot
27 spring-boot-starter-test
28 test
29
30
31 com.alibaba
32 druid
33 1.0.9
34
35
36 org.springframework.cloud
37 spring-cloud-starter-openfeign
38
39
spring.application.name=springcloud-aservice
server.port=8080
eureka.client.service-url.defaultZone=http://localhost:8761/eureka/
#spring.datasource.type=com.alibaba.druid.pool.DruidDataSource
spring.datasource.driver-class-name=com.mysql.jdbc.Driver
spring.datasource.username=root
spring.datasource.password=123456
spring.datasource.url=jdbc:mysql://localhost:3306/yzh?serverTimezone=UTC&useUnicode=true&characterEncoding=utf-8&useSSL=true
#################jpa配置####################
spring.jpa.database=mysql
spring.jpa.show-sql=true
spring.jpa.hibernate.ddl-auto=update
spring.jpa.database-platform=org.hibernate.dialect.MySQL5InnoDBDialect
1 @Entity
2 public class Orders implements Serializable{
3
4 private static final long serialVersionUID = 3295617400035010415L;
5
6 @Id
7 @GeneratedValue(strategy = GenerationType.IDENTITY)
8 private Integer orderId;
9
10 private Integer itemId;
11
12 private Integer price;
13
14 public Integer getOrderId() {
15 return orderId;
16 }
17
18 public void setOrderId(Integer orderId) {
19 this.orderId = orderId;
20 }
21
22 public Integer getItemId() {
23 return itemId;
24 }
25
26 public void setItemId(Integer itemId) {
27 this.itemId = itemId;
28 }
29
30 public Integer getPrice() {
31 return price;
32 }
33
34 public void setPrice(Integer price) {
35 this.price = price;
36 }
37 }
public interface OrderDao extends JpaRepository
{
}
1 @Service
2 public class OrderService {
3
4 @Autowired
5 private OrderDao orderDao;
6 @Autowired
7 private InventoryService inventoryService;
8
9 @Transactional
10 public Orders addOrder(){
11 Orders orders = new Orders();
12 orders.setItemId(100);
13 orders.setPrice(2000);
14
15 Orders save = orderDao.save(orders);
16
17 inventoryService.updateInventory(100,9);
18
19 return save;
20 }
21 }
1 @FeignClient(value = "springcloud-bservice",fallback = InventoryServiceFallback.class)
2 public interface InventoryService {
3
4 @GetMapping(value = "updateInventory")
5 Object updateInventory(@RequestParam(value = "itemId") Integer itemId,@RequestParam(value = "itemNum") Integer itemNum);
6
7 }
8
9 //回调类
10 public class InventoryServiceFallback implements InventoryService{
11 @Override
12 public Object updateInventory(Integer itemId, Integer itemNum) {
13 return 0;
14 }
15 }
@RestController
public class OrdersController {
@Autowired
private OrderService orderService;
@RequestMapping("/addOrders")
public Object addOrders(){
return orderService.addOrder();
}
}
三、创建微服务B
1
2 1.8
3 Greenwich.SR2
4
5
6
7
8 org.springframework.boot
9 spring-boot-starter-data-jpa
10
11
12 org.springframework.boot
13 spring-boot-starter-web
14
15
16 org.springframework.cloud
17 spring-cloud-starter-netflix-eureka-client
18
19
20
21 mysql
22 mysql-connector-java
23 runtime
24
25
26 org.springframework.boot
27 spring-boot-starter-test
28 test
29
30
spring.application.name=springcloud-bservice
server.port=8081
eureka.client.service-url.defaultZone=http://localhost:8761/eureka/
#spring.datasource.type=com.alibaba.druid.pool.DruidDataSource
spring.datasource.driver-class-name=com.mysql.jdbc.Driver
spring.datasource.username=root
spring.datasource.password=123456
spring.datasource.url=jdbc:mysql://localhost:3306/yzh?serverTimezone=UTC&useUnicode=true&characterEncoding=utf-8&useSSL=true
#################jpa配置####################
spring.jpa.database=mysql
spring.jpa.show-sql=true
spring.jpa.hibernate.ddl-auto=update
spring.jpa.database-platform=org.hibernate.dialect.MySQL5InnoDBDialect
1 @Entity
2 @Table(name = "tb_inventory")
3 public class TbInventory implements Serializable{
4 private static final long serialVersionUID = 4171468306443543867L;
5
6 @Id
7 @GeneratedValue(strategy = GenerationType.IDENTITY)
8 private Integer inventoryId;
9
10 private Integer itemId;
11
12 private Integer itemnum;
13
14 public Integer getInventoryId() {
15 return inventoryId;
16 }
17
18 public void setInventoryId(Integer inventoryId) {
19 this.inventoryId = inventoryId;
20 }
21
22 public Integer getItemId() {
23 return itemId;
24 }
25
26 public void setItemId(Integer itemId) {
27 this.itemId = itemId;
28 }
29
30 public Integer getItemnum() {
31 return itemnum;
32 }
33
34 public void setItemnum(Integer itemnum) {
35 this.itemnum = itemnum;
36 }
37 }
public interface TbInventoryDao extends JpaRepository
{
}
1 @Service
2 public class TbInventoryService {
3
4 @Autowired
5 private TbInventoryDao tbInventoryDao;
6
7
8 @Transactional
9 public TbInventory updateInventory(Integer itemId,Integer itemNum){
10 TbInventory tbInventory = new TbInventory();
11 tbInventory.setItemId(itemId);
12 tbInventory.setItemnum(itemNum);
13 TbInventory save = tbInventoryDao.save(tbInventory);
14 System.err.println(1/0);
15 return save;
16
17 }
18 }
@RestController
public class TbInventoryController {
@Autowired
private TbInventoryService tbInventoryService;
@GetMapping("updateInventory")
public Object updateInventory(@RequestParam Integer itemId, @RequestParam Integer itemNum){
return tbInventoryService.updateInventory(itemId,itemNum);
}
}
四、引入LCN
spring.application.name=tx-manager
server.port=7970
spring.datasource.driver-class-name=com.mysql.jdbc.Driver
spring.datasource.url=jdbc:mysql://127.0.0.1:3306/tx-manager?characterEncoding=UTF-8
spring.datasource.username=root
spring.datasource.password=root
mybatis.configuration.map-underscore-to-camel-case=true
mybatis.configuration.use-generated-keys=true
#tx-lcn.logger.enabled=true
# TxManager Host Ip
#tx-lcn.manager.host=127.0.0.1
# TxClient连接请求端口
#tx-lcn.manager.port=8070
# 心跳检测时间(ms)
#tx-lcn.manager.heart-time=15000
# 分布式事务执行总时间
#tx-lcn.manager.dtx-time=30000
#参数延迟删除时间单位ms
#tx-lcn.message.netty.attr-delay-time=10000
#tx-lcn.manager.concurrent-level=128
# 开启日志
#tx-lcn.logger.enabled=true
#logging.level.com.codingapi=debug
#redis 主机
#spring.redis.host=127.0.0.1
#redis 端口
#spring.redis.port=6379
#redis 密码
#spring.redis.password=
CREATE TABLE `t_tx_exception` (
`id` bigint(20) NOT NULL AUTO_INCREMENT,
`group_id` varchar(64) CHARACTER SET utf8mb4 COLLATE utf8mb4_general_ci NULL DEFAULT NULL,
`unit_id` varchar(32) CHARACTER SET utf8mb4 COLLATE utf8mb4_general_ci NULL DEFAULT NULL,
`mod_id` varchar(128) CHARACTER SET utf8mb4 COLLATE utf8mb4_general_ci NULL DEFAULT NULL,
`transaction_state` tinyint(4) NULL DEFAULT NULL,
`registrar` tinyint(4) NULL DEFAULT NULL,
`remark` varchar(4096) NULL DEFAULT NULL,
`ex_state` tinyint(4) NULL DEFAULT NULL COMMENT '0 未解决 1已解决',
`create_time` datetime(0) NULL DEFAULT NULL,
PRIMARY KEY (`id`) USING BTREE
) ENGINE = InnoDB AUTO_INCREMENT = 1 CHARACTER SET = utf8mb4 COLLATE = utf8mb4_general_ci ROW_FORMAT = Dynamic;
1
2 1.8
3 Finchley.RELEASE
4 2.1.7.RELEASE
5
6
7
8 org.springframework.boot
9 spring-boot-starter-data-redis
10 ${spring-boot.version}
11
12
13
14 org.springframework.boot
15 spring-boot-starter-mail
16 ${spring-boot.version}
17
18
19 org.springframework.boot
20 spring-boot-starter-data-jpa
21 ${spring-boot.version}
22
23
24 org.springframework.cloud
25 spring-cloud-starter-netflix-eureka-server
26
eureka.client.service-url.defaultZone=http://localhost:8761/eureka/
五、开始整合
1
2 com.codingapi.txlcn
3 txlcn-tc
4 5.0.2.RELEASE
5
6
7 org.springframework.boot
8 *
9
10
11
12
13
14 com.codingapi.txlcn
15 txlcn-txmsg-netty
16 5.0.2.RELEASE
17
18
19 org.springframework.boot
20 *
21
22
23
六、启动、测试
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