spring cloud + nacos + feign + seata demo
seata 配置核心模块
商品模块
订单模块
库存模块
网关模块
seata server
seata-server.sh -h nacos.blogyg.cn -p 8091 -m db -n 1 &
http://127.0.0.1:5052/commodity/add
{
"name":"young",
"price":"1"
}https://github.com/alibaba/spring-cloud-alibaba/wiki/%E7%89%88%E6%9C%AC%E8%AF%B4%E6%98%8E
spring-cloud-alibaba-dependencies
2.2.6.RELEASE
spring-cloud-dependencies
Hoxton.SR9
nacos
1.3.0
seata
1.3.0
- registry.conf
registry {
# file 、nacos 、eureka、redis、zk、consul、etcd3、sofa
type = "nacos"
nacos {
application = "seata-server"
serverAddr = "nacos.blogyg.cn:9999"
group = "DEFAULT_GROUP"
namespace = ""
cluster = "DEFAULT"
username = "nacos"
password = "nacos"
}
file {
name = "file.conf"
}
}
config {
# file、nacos 、apollo、zk、consul、etcd3
type = "nacos"
file {
name = "file.conf"
}
nacos {
serverAddr = "nacos.blogyg.cn:9999"
group = "DEFAULT_GROUP"
namespace = ""
username = "nacos"
password = "nacos"
cluster = "DEFAULT"
}
}
- config.txt
service.vgroupMapping.my_test_tx_group=default
service.enableDegrade=false
service.disableGlobalTransaction=false
store.mode=db
store.db.datasource=druid
store.db.dbType=mysql
store.db.driverClassName=com.mysql.jdbc.Driver
store.db.url=jdbc:mysql://www.blogyg.cn:3306/seata?useUnicode=true&rewriteBatchedStatements=true
store.db.user=root
store.db.password=123456
store.db.minConn=5
store.db.maxConn=30
store.db.globalTable=global_table
store.db.branchTable=branch_table
store.db.queryLimit=100
store.db.lockTable=lock_table
store.db.maxWait=5000
- seata-nacos.sh
#!/bin/sh
# 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
if [ -z ${host} ]; then
host=nacos.blogyg.cn
fi
if [ -z ${port} ]; then
port=9999
fi
if [ -z ${group} ]; then
group="DEFAULT_GROUP"
fi
if [ -z ${tenant} ]; then
tenant=""
fi
if [ -z ${username} ]; then
username="nacos"
fi
if [ -z ${password} ]; then
password="nacos"
fi
nacosAddr=$host:$port
contentType="content-type:application/json;charset=UTF-8"
echo "set nacosAddr=$nacosAddr"
echo "set group=$group"
urlencode() {
length="${#1}"
i=0
while [ $length -gt $i ]; do
char="${1:$i:1}"
case $char in
[a-zA-Z0-9.~_-]) printf $char ;;
*) printf '%%%02X' "'$char" ;;
esac
i=`expr $i + 1`
done
}
failCount=0
tempLog=$(mktemp -u)
function addConfig() {
dataId=`urlencode $1`
content=`urlencode $2`
curl -X POST -H "${contentType}" "http://$nacosAddr/nacos/v1/cs/configs?dataId=$dataId&group=$group&content=$content&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=`expr $failCount + 1`
fi
}
count=0
for line in $(cat $(dirname "$PWD")/config.txt | sed s/[[:space:]]//g); do
count=`expr $count + 1`
key=${line%%=*}
value=${line#*=}
addConfig "${key}" "${value}"
done
echo "========================================================================="
echo " Complete initialization parameters, total-count:$count , failure-count:$failCount "
echo "========================================================================="
if [ ${failCount} -eq 0 ]; then
echo " Init nacos config finished, please start seata-server. "
else
echo " init nacos config fail. "
fiseata:
enabled: true
tx-service-group: my_test_tx_group
application-id: seata-commodity
config:
type: nacos
nacos:
namespace: ""
server-addr: "nacos.blogyg.cn:9999"
group: "DEFAULT_GROUP"
username: "nacos"
password: "nacos"
cluster: DEFAULT
registry:
type: nacos
nacos:
application: "seata-server"
server-addr: "nacos.blogyg.cn:9999"
group: "DEFAULT_GROUP"
namespace: ""
username: "nacos"
password: "nacos"
cluster: DEFAULT- 数据源代理
此处展示使用 mybatis plus 方式交给 seata 代理，其他 orm 框架同理，只需要将 dataSourceProxy 交给 DataSourceTransactionManager 管理即可
package com.young.seata.config;
import com.alibaba.druid.pool.DruidDataSource;
import com.baomidou.mybatisplus.extension.spring.MybatisSqlSessionFactoryBean;
import io.seata.rm.datasource.DataSourceProxy;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.annotation.Qualifier;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.boot.autoconfigure.jdbc.DataSourceProperties;
import org.springframework.boot.context.properties.ConfigurationProperties;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.context.annotation.Primary;
import org.springframework.jdbc.datasource.DataSourceTransactionManager;
import javax.sql.DataSource;
/**
* alibaba seata 配置类
*/
@Slf4j
@Configuration
public class SeataAutoConfig {
@Value("${spring.application.name}")
String applicationName;
/**
* autowired datasource config
*/
@Autowired
private DataSourceProperties dataSourceProperties;
/**
* init durid datasource
*
* @Return: druidDataSource datasource instance
*/
@Primary
@Bean("druidDataSource")
public DruidDataSource druidDataSource() {
DruidDataSource druidDataSource = new DruidDataSource();
druidDataSource.setUrl(dataSourceProperties.getUrl());
druidDataSource.setUsername(dataSourceProperties.getUsername());
druidDataSource.setPassword(dataSourceProperties.getPassword());
druidDataSource.setDriverClassName(dataSourceProperties.getDriverClassName());
druidDataSource.setInitialSize(0);
druidDataSource.setMaxActive(180);
druidDataSource.setMaxWait(60000);
druidDataSource.setMinIdle(0);
druidDataSource.setValidationQuery("Select 1 from DUAL");
druidDataSource.setTestOnBorrow(false);
druidDataSource.setTestOnReturn(false);
druidDataSource.setTestWhileIdle(true);
druidDataSource.setTimeBetweenEvictionRunsMillis(60000);
druidDataSource.setMinEvictableIdleTimeMillis(25200000);
druidDataSource.setRemoveAbandoned(true);
druidDataSource.setRemoveAbandonedTimeout(1800);
druidDataSource.setLogAbandoned(true);
return druidDataSource;
}
/**
* init datasource proxy
*
* @Param: druidDataSource datasource bean instance
* @Return: DataSourceProxy datasource proxy
*/
@Bean
public DataSourceProxy dataSourceProxy(DruidDataSource druidDataSource) {
return new DataSourceProxy(druidDataSource);
}
@Bean
public DataSourceTransactionManager transactionManager(DataSourceProxy dataSourceProxy) {
return new DataSourceTransactionManager(dataSourceProxy);
}
/**
* mybatis plus 需要加上此配置，否则无法使用 mybatis plus
*
* @param dataSource
* @return
*/
@Bean
@ConfigurationProperties(prefix = "mybatis")
public MybatisSqlSessionFactoryBean sqlSessionFactoryBean(@Qualifier("druidDataSource") DataSource dataSource) {
// 这里用 MybatisSqlSessionFactoryBean 代替了 SqlSessionFactoryBean，否则 MyBatisPlus 不会生效
MybatisSqlSessionFactoryBean mybatisSqlSessionFactoryBean = new MybatisSqlSessionFactoryBean();
mybatisSqlSessionFactoryBean.setDataSource(dataSource);
return mybatisSqlSessionFactoryBean;
}
}