1.4.2 Seata单机启动(以file方式启动)

Posted 2022-04-11 _DiMinisH

Seata 单机启动

• 1. 下载Seata 1.4.2
• 2. 文件方式直接启动seata
• • 1. jdk8启动
  • 2. jdk17启动
  • 3. 闪退问题
  • 4. 其他配置
• 3. 测试seata
• • 1. 版本
  • 2. 总体目录
  • 3. 配置
  • • (1). application.properties配置
    • (2). 添加注解@EnableAutoDataSourceProxy
    • (3). 添加启动参数
    • (4). 主要逻辑
    • (5). 启动项目
    • • 订单服务情况
      • 库存服务情况
      • seata控制台情况
      • 数据库情况
• 4. 总结

1. 下载Seata 1.4.2

Seata下载连接

1. 下载完后解压
   
2. seata目录如下
   

2. 文件方式直接启动seata

默认情况下
用jdk1.8直接可以启动seata
其他版本的博主没有试过

• 进入bin目录
• 双击.bat文件即可

1. jdk8启动

直接双击.bat文件即可

启动成功

2. jdk17启动

1. 编辑.bat文件, 用记事本打开
2. 修改 %JAVACMD%
   
   将原来的替换为

%JAVACMD% %JAVA_OPTS% -server --add-opens=java.base/java.lang=ALL-UNNAMED -Xmx2048m -Xms2048m -Xmn1024m -Xss512k -XX:SurvivorRatio=10 -XX:MetaspaceSize=128m -XX:MaxMetaspaceSize=256m -XX:MaxDirectMemorySize=1024m -XX:-OmitStackTraceInFastThrow -XX:-UseAdaptiveSizePolicy -XX:+HeapDumpOnOutOfMemoryError -XX:HeapDumpPath="%BASEDIR%"/logs/java_heapdump.hprof -XX:+DisableExplicitGC  -Xlog:gc:"%BASEDIR%"/logs/seata_gc.log -verbose:gc -Dio.netty.leakDetectionLevel=advanced -Dlogback.color.disable-for-bat=true -classpath %CLASSPATH% -Dapp.name="seata-server" -Dapp.repo="%REPO%" -Dapp.home="%BASEDIR%" -Dbasedir="%BASEDIR%" io.seata.server.Server %CMD_LINE_ARGS%

3. 双击启动

3. 闪退问题

如果出现闪退, 可能是jdk版本不对, 检查一下jdk版本, jdk17启动要改配置

4. 其他配置

见下面的测试

3. 测试seata

1. 订单服务
2. 库存服务
3. 订单服务通过open-feign调用库存服务
4. 在订单服务抛出异常, 检查能不能进行回滚操作

1. 版本

父工程pom文件

<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0"
         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">

    <artifactId>seata-sample</artifactId>
    <groupId>org.example</groupId>
    <version>1.0-SNAPSHOT</version>
    <modelVersion>4.0.0</modelVersion>

    <properties>
        <maven.compiler.source>17</maven.compiler.source>
        <maven.compiler.target>17</maven.compiler.target>
        <spring.boot.version>2.6.6</spring.boot.version>
        <spring.framework.version>5.3.18</spring.framework.version>
        <spring.cloud.version>2021.0.2-SNAPSHOT</spring.cloud.version>
        <spring.cloud.alibaba.version>2021.0.1.0</spring.cloud.alibaba.version>
        <spring.data.version>2021.0.2-SNAPSHOT</spring.data.version>
    </properties>


    <dependencyManagement>
        <!--        Spring Boot-->
        <dependencies>
            <dependency>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-dependencies</artifactId>
                <version>$spring.boot.version</version>
                <type>pom</type>
                <scope>import</scope>
            </dependency>

            <dependency>
                <groupId>org.springframework</groupId>
                <artifactId>spring-framework-bom</artifactId>
                <version>$spring.framework.version</version>
                <type>pom</type>
                <scope>import</scope>
            </dependency>

            <!--        Spring Cloud-->
            <dependency>
                <groupId>org.springframework.cloud</groupId>
                <artifactId>spring-cloud-dependencies</artifactId>
                <version>$spring.cloud.version</version>
                <type>pom</type>
                <scope>import</scope>
            </dependency>

            <!--        Spring Cloud Alibaba-->
            <dependency>
                <groupId>com.alibaba.cloud</groupId>
                <artifactId>spring-cloud-alibaba-dependencies</artifactId>
                <version>$spring.cloud.alibaba.version</version>
                <type>pom</type>
                <scope>import</scope>
            </dependency>

            <!--        Spring Data-->
            <dependency>
                <groupId>org.springframework.data</groupId>
                <artifactId>spring-data-bom</artifactId>
                <version>$spring.data.version</version>
                <scope>import</scope>
                <type>pom</type>
            </dependency>

        </dependencies>
    </dependencyManagement>

    <repositories>
        <repository>
            <id>spring-milestone</id>
            <name>Spring Milestone Repository</name>
            <url>https://repo.spring.io/milestone</url>
        </repository>

        <repository>
            <id>spring-snapshot</id>
            <name>Spring Snapshot Repository</name>
            <url>https://repo.spring.io/snapshot</url>
        </repository>
    </repositories>

    <build>
        <plugins>
            <plugin>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-maven-plugin</artifactId>
                <version>$spring.boot.version</version>
            </plugin>
        </plugins>
    </build>

</project>

2. 总体目录

1. 目录
   
   
2. 子工程依赖

<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0"
         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
    <parent>
        <artifactId>seata-sample</artifactId>
        <groupId>org.example</groupId>
        <version>1.0-SNAPSHOT</version>
    </parent>
    <modelVersion>4.0.0</modelVersion>

    <artifactId>seata-stock</artifactId>

    <properties>
        <maven.compiler.source>17</maven.compiler.source>
        <maven.compiler.target>17</maven.compiler.target>
    </properties>

    <dependencies>

        <dependency>
            <groupId>org.springframework.data</groupId>
            <artifactId>spring-data-jpa</artifactId>
        </dependency>

        <dependency>
            <groupId>mysql</groupId>
            <artifactId>mysql-connector-java</artifactId>
        </dependency>

        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
        </dependency>

        <!--        nacos注册中心服务发现-->
        <dependency>
            <groupId>com.alibaba.cloud</groupId>
            <artifactId>spring-cloud-starter-alibaba-nacos-discovery</artifactId>
        </dependency>

        <!--        feign-->
        <dependency>
            <groupId>org.springframework.cloud</groupId>
            <artifactId>spring-cloud-starter-openfeign</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.cloud</groupId>
            <artifactId>spring-cloud-starter-loadbalancer</artifactId>
        </dependency>

        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-data-jpa</artifactId>
        </dependency>

        <dependency>
            <groupId>org.projectlombok</groupId>
            <artifactId>lombok</artifactId>
        </dependency>

        <dependency>
            <groupId>com.alibaba.cloud</groupId>
            <artifactId>spring-cloud-starter-alibaba-seata</artifactId>
        </dependency>

        <dependency>
            <groupId>io.seata</groupId>
            <artifactId>seata-spring-boot-starter</artifactId>
            <version>1.4.2</version>
        </dependency>


    </dependencies>

</project>

3. 配置

(1). application.properties配置

在每一个服务中, 对配置seata所需要的信息

订单服务的配置

server.port=8001
spring.application.name=order

spring.cloud.nacos.discovery.server-addr=localhost:8848
spring.cloud.nacos.discovery.namespace=public
spring.cloud.nacos.discovery.service=$spring.application.name
spring.cloud.nacos.discovery.group=DEFAULT_GROUP

spring.jpa.hibernate.ddl-auto=update
spring.datasource.url=jdbc:mysql://localhost:3306/seata_order?useUnicode=true&characterEncoding=utf8
spring.datasource.username=root
spring.datasource.password=123456
spring.datasource.driver-class-name=com.mysql.cj.jdbc.Driver
spring.jpa.show-sql=true
spring.jpa.open-in-view=true

# seata 配置
seata.tx-service-group=my-tx-group
seata.service.vgroup-mapping.my-tx-group=seata-server
seata.service.grouplist.seata-server=127.0.0.1:8091
seata.enabled=true

库存服务配置

server.port=8003
spring.application.name=stock

spring.cloud.nacos.discovery.server-addr=localhost:8848
spring.cloud.nacos.discovery.namespace=public
spring.cloud.nacos.discovery.service=$spring.application.name
spring.cloud.nacos.discovery.group=DEFAULT_GROUP

spring.jpa.hibernate.ddl-auto=update
spring.datasource.url=jdbc:mysql://localhost:3306/seata_storage?useUnicode=true&characterEncoding=utf8
spring.datasource.username=root
spring.datasource.password=123456
spring.datasource.driver-class-name=com.mysql.cj.jdbc.Driver
spring.jpa.show-sql=true

# seata 配置
seata.tx-service-group=my-tx-group
seata.service.vgroup-mapping.my-tx-group=seata-server
seata.service.grouplist.seata-server=127.0.0.1:8091
seata.enabled=true

(2). 添加注解@EnableAutoDataSourceProxy

在两个服务的启动类似添加@EnableAutoDataSourceProxy注解

(3). 添加启动参数

1. 打开启动配置
   

2. 添加参数

--add-opens=java.base/java.lang.reflect=ALL-UNNAMED --add-opens=java.base/java.lang=ALL-UNNAMED  

如果不添加会出现如下错误

2022-04-10 20:20:22.049  WARN 22636 --- [           main] ConfigServletWebServerApplicationContext : Exception encountered during context initialization - cancelling refresh attempt: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'globalTransactionScanner' defined in class path resource [io/seata/spring/boot/autoconfigure/SeataAutoConfiguration.class]: Bean instantiation via factory method failed; nested exception is org.springframework.beans.BeanInstantiationException: Failed to instantiate [io.seata.spring.annotation.GlobalTransactionScanner]: Factory method 'globalTransactionScanner' threw exception; nested exception is java.lang.ExceptionInInitializerError
2022-04-10 20:20:22.057  INFO 22636 --- [           main] ConditionEvaluationReportLoggingListener : 

Error starting ApplicationContext. To display the conditions report re-run your application with 'debug' enabled.
2022-04-10 20:20:22.075 ERROR 22636 --- [           main] o.s.boot.SpringApplication               : Application run failed

org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'globalTransactionScanner' defined in class path resource [io/seata/spring/boot/autoconfigure/SeataAutoConfiguration.class]: Bean instantiation via factory method failed; nested exception is org.springframework.beans.BeanInstantiationException: Failed to instantiate [io.seata.spring.annotation.GlobalTransactionScanner]: Factory method 'globalTransactionScanner' threw exception; nested exception is java.lang.ExceptionInInitializerError
	at org.springframework.beans.factory.support.ConstructorResolver.instantiate(ConstructorResolver.java:658) ~[spring-beans-5.3.18.jar:5.3.18]
	at org.springframework.beans.factory.support.ConstructorResolver.instantiateUsingFactoryMethod(ConstructorResolver.java:638) ~[spring-beans-5.3.18.jar:5.3.18]
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.instantiateUsingFactoryMethod(AbstractAutowireCapableBeanFactory.java:1352) ~[spring-beans-5.3.18.jar:5.3.18]
	at org1.4.2 Seata以nacos作为注册中心的配置和使用

 1.4.2 Seata以nacos作为注册中心的配置和使用
 seata-spring-boot-starter 启动配置
 seata-spring-boot-starter 启动配置
 win10安装seata1.3.0（图解版）
 win10安装seata1.3.0（图解版）