去除自动读写分离

This commit is contained in:
dingzhongyuan 2021-06-22 09:19:07 +08:00
parent 58083875b1
commit e8616108e8
5 changed files with 69 additions and 218 deletions

View File

@ -15,9 +15,6 @@ spring:
login-username: ruoyi
login-password: 123456
dynamic:
#是否开启读写分离
ms: true
log: true
druid:
# 初始连接数
initialSize: 5

View File

@ -14,9 +14,6 @@ spring:
login-username: ruoyi
login-password: 123456
dynamic:
#是否开启读写分离
ms: false
log: true
druid:
# 初始连接数
initialSize: 5

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@ -1,135 +0,0 @@
//
// Source code recreated from a .class file by IntelliJ IDEA
// (powered by FernFlower decompiler)
//
package com.baomidou.dynamic.datasource.plugin;
import com.baomidou.dynamic.datasource.DynamicRoutingDataSource;
import com.baomidou.dynamic.datasource.ds.GroupDataSource;
import com.baomidou.dynamic.datasource.spring.boot.autoconfigure.DynamicDataSourceProperties;
import com.baomidou.dynamic.datasource.support.HealthCheckAdapter;
import com.baomidou.dynamic.datasource.toolkit.DynamicDataSourceContextHolder;
import java.util.Map;
import java.util.Properties;
import javax.sql.DataSource;
import org.apache.ibatis.cache.CacheKey;
import org.apache.ibatis.executor.Executor;
import org.apache.ibatis.mapping.BoundSql;
import org.apache.ibatis.mapping.MappedStatement;
import org.apache.ibatis.mapping.SqlCommandType;
import org.apache.ibatis.plugin.Interceptor;
import org.apache.ibatis.plugin.Intercepts;
import org.apache.ibatis.plugin.Invocation;
import org.apache.ibatis.plugin.Plugin;
import org.apache.ibatis.plugin.Signature;
import org.apache.ibatis.session.ResultHandler;
import org.apache.ibatis.session.RowBounds;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.boot.autoconfigure.condition.ConditionalOnProperty;
import org.springframework.context.annotation.Lazy;
@Intercepts({@Signature(
type = Executor.class,
method = "query",
args = {MappedStatement.class, Object.class, RowBounds.class, ResultHandler.class}
), @Signature(
type = Executor.class,
method = "query",
args = {MappedStatement.class, Object.class, RowBounds.class, ResultHandler.class, CacheKey.class, BoundSql.class}
), @Signature(
type = Executor.class,
method = "update",
args = {MappedStatement.class, Object.class}
)})
public class MasterSlaveAutoRoutingPlugin implements Interceptor {
private static final Logger log = LoggerFactory.getLogger(MasterSlaveAutoRoutingPlugin.class);
@Autowired
protected DataSource dynamicDataSource;
@Autowired
private DynamicDataSourceProperties properties;
@Lazy
@Autowired(
required = false
)
private HealthCheckAdapter healthCheckAdapter;
@Value("${spring.datasource.dynamic.log}")
private boolean masterLog;
public MasterSlaveAutoRoutingPlugin() {
}
public Object intercept(Invocation invocation) throws Throwable {
Object[] args = invocation.getArgs();
MappedStatement ms = (MappedStatement)args[0];
String pushedDataSource = null;
Object var6;
try {
String dataSource = this.getDataSource(ms);
pushedDataSource = DynamicDataSourceContextHolder.push(dataSource);
var6 = invocation.proceed();
if (masterLog){
logMasterAndSlave(ms,pushedDataSource);
}
} finally {
if (pushedDataSource != null) {
DynamicDataSourceContextHolder.poll();
}
}
return var6;
}
public String getDataSource(MappedStatement mappedStatement) {
String currentDataSource = SqlCommandType.SELECT == mappedStatement.getSqlCommandType() ? "slave" : "master";
String dataSource = null;
if (this.properties.isHealth()) {
DynamicRoutingDataSource dynamicRoutingDataSource = (DynamicRoutingDataSource)this.dynamicDataSource;
Map currentGroupDataSources;
GroupDataSource groupDataSource;
if ("slave".equalsIgnoreCase(currentDataSource)) {
currentGroupDataSources = dynamicRoutingDataSource.getCurrentGroupDataSources();
groupDataSource = (GroupDataSource)currentGroupDataSources.get("slave");
String dsKey = groupDataSource.determineDsKey();
boolean health = this.healthCheckAdapter.getHealth(dsKey);
if (health) {
dataSource = dsKey;
} else {
log.warn("从库无法连接, 请检查数据库配置, key: {}", dsKey);
}
}
if (dataSource == null) {
currentGroupDataSources = dynamicRoutingDataSource.getCurrentGroupDataSources();
groupDataSource = (GroupDataSource)currentGroupDataSources.get("master");
dataSource = groupDataSource.determineDsKey();
boolean health = this.healthCheckAdapter.getHealth(dataSource);
if (!health) {
log.warn("主库无法连接, 请检查数据库配置, key: {}", dataSource);
}
}
} else {
dataSource = currentDataSource;
}
return dataSource;
}
public Object plugin(Object target) {
return Plugin.wrap(target, this);
}
public void setProperties(Properties properties) {
}
public void logMasterAndSlave(MappedStatement ms,String pushedDataSource){
// String logString = ms.getId().substring(ms.getId().lastIndexOf(".")+1);
log.info("查询方法:"+ms.getId()+"----"+"数据源:"+pushedDataSource);
}
}

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@ -0,0 +1,69 @@
package com.ruoyi.framework.config;
import java.io.IOException;
import javax.servlet.Filter;
import javax.servlet.FilterChain;
import javax.servlet.ServletException;
import javax.servlet.ServletRequest;
import javax.servlet.ServletResponse;
import org.springframework.boot.autoconfigure.condition.ConditionalOnProperty;
import org.springframework.boot.web.servlet.FilterRegistrationBean;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import com.alibaba.druid.spring.boot.autoconfigure.properties.DruidStatProperties;
import com.alibaba.druid.util.Utils;
/**
* druid 配置多数据源
*
* @author ruoyi
*/
@Configuration
public class DruidConfig
{
/**
* 去除监控页面底部的广告
*/
@SuppressWarnings({ "rawtypes", "unchecked" })
@Bean
@ConditionalOnProperty(name = "spring.datasource.druid.statViewServlet.enabled", havingValue = "true")
public FilterRegistrationBean removeDruidFilterRegistrationBean(DruidStatProperties properties)
{
// 获取web监控页面的参数
DruidStatProperties.StatViewServlet config = properties.getStatViewServlet();
// 提取common.js的配置路径
String pattern = config.getUrlPattern() != null ? config.getUrlPattern() : "/druid/*";
String commonJsPattern = pattern.replaceAll("\\*", "js/common.js");
final String filePath = "support/http/resources/js/common.js";
// 创建filter进行过滤
Filter filter = new Filter()
{
@Override
public void init(javax.servlet.FilterConfig filterConfig) throws ServletException
{
}
@Override
public void doFilter(ServletRequest request, ServletResponse response, FilterChain chain)
throws IOException, ServletException
{
chain.doFilter(request, response);
// 重置缓冲区响应头不会被重置
// response.resetBuffer();
// 获取common.js
String text = Utils.readFromResource(filePath);
// 正则替换banner, 除去底部的广告信息
text = text.replaceAll("<a.*?banner\"></a><br/>", "");
text = text.replaceAll("powered.*?shrek.wang</a>", "");
response.getWriter().write(text);
}
@Override
public void destroy()
{
}
};
FilterRegistrationBean registrationBean = new FilterRegistrationBean();
registrationBean.setFilter(filter);
registrationBean.addUrlPatterns(commonJsPattern);
return registrationBean;
}
}

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@ -1,77 +0,0 @@
package com.ruoyi.framework.config;
import com.alibaba.druid.spring.boot.autoconfigure.properties.DruidStatProperties;
import com.alibaba.druid.util.Utils;
import com.baomidou.dynamic.datasource.plugin.MasterSlaveAutoRoutingPlugin;
import org.mybatis.spring.annotation.MapperScan;
import org.springframework.boot.autoconfigure.condition.ConditionalOnProperty;
import org.springframework.boot.web.servlet.FilterRegistrationBean;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.transaction.annotation.EnableTransactionManagement;
import javax.servlet.*;
import java.io.IOException;
/**
* 在纯的读写分离环境写操作全部是master读操作全部是slave
* @author ding
*/
@Configuration
public class DynamicDataSourceConfig {
@Bean
@ConditionalOnProperty(name = "spring.datasource.dynamic.ms", havingValue = "true")
public MasterSlaveAutoRoutingPlugin masterSlaveAutoRoutingPlugin(){
System.out.println("-----------读写分离已开启------------");
return new MasterSlaveAutoRoutingPlugin();
}
/**
* 去除监控页面底部的广告
*/
@SuppressWarnings({ "rawtypes", "unchecked" })
@Bean
@ConditionalOnProperty(name = "spring.datasource.druid.statViewServlet.enabled", havingValue = "true")
public FilterRegistrationBean removeDruidFilterRegistrationBean(DruidStatProperties properties)
{
// 获取web监控页面的参数
DruidStatProperties.StatViewServlet config = properties.getStatViewServlet();
// 提取common.js的配置路径
String pattern = config.getUrlPattern() != null ? config.getUrlPattern() : "/druid/*";
String commonJsPattern = pattern.replaceAll("\\*", "js/common.js");
final String filePath = "support/http/resources/js/common.js";
// 创建filter进行过滤
Filter filter = new Filter()
{
@Override
public void init(javax.servlet.FilterConfig filterConfig) throws ServletException
{
}
@Override
public void doFilter(ServletRequest request, ServletResponse response, FilterChain chain)
throws IOException, ServletException
{
chain.doFilter(request, response);
// 重置缓冲区响应头不会被重置
// response.resetBuffer();
// 获取common.js
String text = Utils.readFromResource(filePath);
// 正则替换banner, 除去底部的广告信息
text = text.replaceAll("<a.*?banner\"></a><br/>", "");
text = text.replaceAll("powered.*?shrek.wang</a>", "");
response.getWriter().write(text);
}
@Override
public void destroy()
{
}
};
FilterRegistrationBean registrationBean = new FilterRegistrationBean();
registrationBean.setFilter(filter);
registrationBean.addUrlPatterns(commonJsPattern);
return registrationBean;
}
}