From dd60097248eef2b22a8f0e02a8d479dfda3587ae Mon Sep 17 00:00:00 2001 From: lilei Date: Mon, 11 Mar 2024 10:11:06 +0800 Subject: [PATCH] =?UTF-8?q?chore=EF=BC=9A=E5=AE=8C=E5=96=84DruidConfig?= =?UTF-8?q?=E7=9A=84=E4=BB=A3=E7=A0=81=E8=AF=B4=E6=98=8E=EF=BC=8C=E4=BB=A5?= =?UTF-8?q?=E5=8F=8A=E5=AF=B9=E5=BC=82=E5=B8=B8=E5=BF=BD=E7=95=A5=E5=A4=84?= =?UTF-8?q?=E6=B7=BB=E5=8A=A0ignored=E5=85=B3=E9=94=AE=E5=AD=97?= MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit --- .../ruoyi/framework/config/DruidConfig.java | 80 ++++++++----------- 1 file changed, 35 insertions(+), 45 deletions(-) diff --git a/ruoyi-framework/src/main/java/com/ruoyi/framework/config/DruidConfig.java b/ruoyi-framework/src/main/java/com/ruoyi/framework/config/DruidConfig.java index b4c356bb0..976e8b438 100644 --- a/ruoyi-framework/src/main/java/com/ruoyi/framework/config/DruidConfig.java +++ b/ruoyi-framework/src/main/java/com/ruoyi/framework/config/DruidConfig.java @@ -1,20 +1,5 @@ package com.ruoyi.framework.config; -import java.io.IOException; -import java.util.HashMap; -import java.util.Map; -import javax.servlet.Filter; -import javax.servlet.FilterChain; -import javax.servlet.ServletException; -import javax.servlet.ServletRequest; -import javax.servlet.ServletResponse; -import javax.sql.DataSource; -import org.springframework.boot.autoconfigure.condition.ConditionalOnProperty; -import org.springframework.boot.context.properties.ConfigurationProperties; -import org.springframework.boot.web.servlet.FilterRegistrationBean; -import org.springframework.context.annotation.Bean; -import org.springframework.context.annotation.Configuration; -import org.springframework.context.annotation.Primary; import com.alibaba.druid.pool.DruidDataSource; import com.alibaba.druid.spring.boot.autoconfigure.DruidDataSourceBuilder; import com.alibaba.druid.spring.boot.autoconfigure.properties.DruidStatProperties; @@ -23,19 +8,29 @@ import com.ruoyi.common.enums.DataSourceType; import com.ruoyi.common.utils.spring.SpringUtils; import com.ruoyi.framework.config.properties.DruidProperties; import com.ruoyi.framework.datasource.DynamicDataSource; +import org.springframework.boot.autoconfigure.condition.ConditionalOnProperty; +import org.springframework.boot.context.properties.ConfigurationProperties; +import org.springframework.boot.web.servlet.FilterRegistrationBean; +import org.springframework.context.annotation.Bean; +import org.springframework.context.annotation.Configuration; +import org.springframework.context.annotation.Primary; + +import javax.servlet.*; +import javax.sql.DataSource; +import java.io.IOException; +import java.util.HashMap; +import java.util.Map; /** * druid 配置多数据源 - * + * * @author ruoyi */ @Configuration -public class DruidConfig -{ +public class DruidConfig { @Bean @ConfigurationProperties("spring.datasource.druid.master") - public DataSource masterDataSource(DruidProperties druidProperties) - { + public DataSource masterDataSource(DruidProperties druidProperties) { DruidDataSource dataSource = DruidDataSourceBuilder.create().build(); return druidProperties.dataSource(dataSource); } @@ -43,16 +38,14 @@ public class DruidConfig @Bean @ConfigurationProperties("spring.datasource.druid.slave") @ConditionalOnProperty(prefix = "spring.datasource.druid.slave", name = "enabled", havingValue = "true") - public DataSource slaveDataSource(DruidProperties druidProperties) - { + public DataSource slaveDataSource(DruidProperties druidProperties) { DruidDataSource dataSource = DruidDataSourceBuilder.create().build(); return druidProperties.dataSource(dataSource); } @Bean(name = "dynamicDataSource") @Primary - public DynamicDataSource dataSource(DataSource masterDataSource) - { + public DynamicDataSource dataSource(DataSource masterDataSource) { Map targetDataSources = new HashMap<>(); targetDataSources.put(DataSourceType.MASTER.name(), masterDataSource); setDataSource(targetDataSources, DataSourceType.SLAVE.name(), "slaveDataSource"); @@ -61,31 +54,27 @@ public class DruidConfig /** * 设置数据源 - * + * * @param targetDataSources 备选数据源集合 - * @param sourceName 数据源名称 - * @param beanName bean名称 + * @param sourceName 数据源名称 + * @param beanName bean名称 */ - public void setDataSource(Map targetDataSources, String sourceName, String beanName) - { - try - { + public void setDataSource(Map targetDataSources, String sourceName, String beanName) { + try { DataSource dataSource = SpringUtils.getBean(beanName); targetDataSources.put(sourceName, dataSource); - } - catch (Exception e) - { + } catch (Exception ignored) { + //忽略此处的异常 } } /** * 去除监控页面底部的广告 */ - @SuppressWarnings({ "rawtypes", "unchecked" }) + @SuppressWarnings({"rawtypes", "unchecked"}) @Bean @ConditionalOnProperty(name = "spring.datasource.druid.statViewServlet.enabled", havingValue = "true") - public FilterRegistrationBean removeDruidFilterRegistrationBean(DruidStatProperties properties) - { + 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 @@ -93,17 +82,17 @@ public class DruidConfig 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() - { + Filter filter = new Filter() { @Override - public void init(javax.servlet.FilterConfig filterConfig) throws ServletException - { + public void init(javax.servlet.FilterConfig filterConfig) throws ServletException { + //web应用启动时，web服务器将创建Filter的实例对象，并调用init方法，读取web.xml的配置，完成对象的初始化功能 + //filter对象只会创建一次，init方法也只会执行一次 + //开发人员通过init的参数，可或得代表当前filter配置信息的FilterConfig对象 } @Override public void doFilter(ServletRequest request, ServletResponse response, FilterChain chain) - throws IOException, ServletException - { + throws IOException, ServletException { chain.doFilter(request, response); // 重置缓冲区，响应头不会被重置 response.resetBuffer(); @@ -116,8 +105,9 @@ public class DruidConfig } @Override - public void destroy() - { + public void destroy() { + //filter创建后会保存在内存中，当web应用移除或者服务器停止时才销毁 + //该方法在Filter的生命周期中仅执行一次，在这个方法中，可以释放过滤器使用的资源 } }; FilterRegistrationBean registrationBean = new FilterRegistrationBean();