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Spring MVC 配置 druid 数据源实例

2017-02-22 21:49 483 查看
转载：http://blog.csdn.net/u011310774/article/details/49465477
Spring MVC 配置 druid 数据源实例

druid 项目放在 github 上，文档地址：https://github.com/alibaba/druid/wiki/%E5%B8%B8%E8%A7%81%E9%97%AE%E9%A2%98
工程目录结构：


1. 创建工程，添加 jar 包依赖

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<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/maven-v4_0_0.xsd">
<modelVersion>4.0.0</modelVersion>

<groupId>com.test</groupId>

<artifactId>spring.druid</artifactId>

<packaging>war</packaging>

<version>0.0.1-SNAPSHOT</version>

<name>spring.druid Maven Webapp</name>

<url>http://maven.apache.org</url>

<properties>

<maven.compiler.source>1.8</maven.compiler.source>

<maven.compiler.target>1.8</maven.compiler.target>

<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>

<!-- 第三方库 -->

<junit.version>4.11</junit.version>

<spring.version>4.1.6.RELEASE</spring.version>

<mysql.connector.java.version>5.1.26</mysql.connector.java.version>

<druid.version>1.0.7</druid.version>

<javax.servlet.version>3.0.1</javax.servlet.version>

<aspectjweaver.version>1.8.1</aspectjweaver.version>

<org.slf4j.log4j12.version>1.7.5</org.slf4j.log4j12.version>

</properties>

<repositories>

<repository>

<id>oschinaRepository</id>

<name>local private nexus</name>

<url>http://maven.oschina.net/content/groups/public/</url>

<releases>

<enabled>true</enabled>

</releases>

<snapshots>

<enabled>true</enabled>

</snapshots>

</repository>

</repositories>

<dependencies>

<dependency>

<groupId>junit</groupId>

<artifactId>junit</artifactId>

<version>${junit.version}</version>

<scope>test</scope>

</dependency>

<!-- Log 框架 -->

<dependency>

<groupId>org.slf4j</groupId>

<artifactId>slf4j-log4j12</artifactId>

<version>${org.slf4j.log4j12.version}</version>

</dependency>

<!-- servlet -->

<dependency>

<groupId>javax.servlet</groupId>

<artifactId>javax.servlet-api</artifactId>

<version>${javax.servlet.version}</version>

<scope>provided</scope>

</dependency>

<!-- Spring 框架 -->

<!-- 加入spring mvc依赖包 -->

<dependency>

<groupId>org.springframework</groupId>

<artifactId>spring-webmvc</artifactId>

<version>${spring.version}</version>

</dependency>

<dependency>

<groupId>org.springframework</groupId>

<artifactId>spring-jdbc</artifactId>

<version>${spring.version}</version>

</dependency>

<!-- 加入spring测试依赖包 -->

<dependency>

<groupId>org.springframework</groupId>

<artifactId>spring-test</artifactId>

<version>${spring.version}</version>

<scope>test</scope>

</dependency>

<!-- aspectj -->

<dependency>

<groupId>org.aspectj</groupId>

<artifactId>aspectjweaver</artifactId>

<version>${aspectjweaver.version}</version>

</dependency>

<!-- 数据库驱动 -->

<dependency>

<groupId>mysql</groupId>

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

<version>${mysql.connector.java.version}</version>

</dependency>

<!-- 加入druid数据源依赖包 -->

<dependency>

<groupId>com.alibaba</groupId>

<artifactId>druid</artifactId>

<version>${druid.version}</version>

</dependency>

</dependencies>

<build>

<finalName>spring.druid</finalName>

<plugins>

<plugin>

<groupId>org.apache.maven.plugins</groupId>

<artifactId>maven-surefire-plugin</artifactId>

<version>2.19</version>

<configuration>

<skip>true</skip>

<testFailureIgnore>true</testFailureIgnore>

<includes>

<include>**/*Test.java</include>

<include>**/*TestCase.java</include>

<include>**/Test*.java</include>

</includes>

<excludes>

<exclude>**/Abstract*.java</exclude>

</excludes>

</configuration>

</plugin>

<plugin>

<!-- 编译的时候使用JDK8和UTF8编码 -->

<groupId>org.apache.maven.plugins</groupId>

<artifactId>maven-compiler-plugin</artifactId>

<version>3.1</version>

<configuration>

<source>1.8</source>

<target>1.8</target>

<encoding>UTF-8</encoding>

</configuration>

</plugin>

<!-- war打包插件 -->

<plugin>

<groupId>org.apache.maven.plugins</groupId>

<artifactId>maven-war-plugin</artifactId>

<version>2.2</version>

<configuration>

<!-- http://maven.apache.org/plugins/maven-war-plugin/ -->

<packagingExcludes>WEB-INF/web.xml</packagingExcludes>

</configuration>

</plugin>

</plugins>

</build>

</project>

2. 配置 spring 相关文件

--> spring.xml

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<?xml version="1.0" encoding="UTF-8"?>

<beans xmlns="http://www.springframework.org/schema/beans"

xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:p="http://www.springframework.org/schema/p"

xmlns:context="http://www.springframework.org/schema/context"

xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd">

<!-- 引入项目配置文件 -->

<!-- <context:property-placeholder location="classpath:config.properties"

/> -->

<bean

class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer">

<property name="locations">

<list>

<value>classpath:config.properties</value>

</list>

</property>

</bean>

<!-- 默认的注解映射的支持 -->

<context:annotation-config />

<import resource="spring-druid.xml" />

<import resource="spring-jdbc.xml" />

</beans>

--> spring-druid.xml

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<?xml version="1.0" encoding="UTF-8"?>

<beans xmlns="http://www.springframework.org/schema/beans"

xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:aop="http://www.springframework.org/schema/aop"

xmlns:c="http://www.springframework.org/schema/c" xmlns:cache="http://www.springframework.org/schema/cache"

xmlns:context="http://www.springframework.org/schema/context"

xmlns:jdbc="http://www.springframework.org/schema/jdbc" xmlns:jee="http://www.springframework.org/schema/jee"

xmlns:lang="http://www.springframework.org/schema/lang" xmlns:mvc="http://www.springframework.org/schema/mvc"

xmlns:p="http://www.springframework.org/schema/p" xmlns:task="http://www.springframework.org/schema/task"

xmlns:tx="http://www.springframework.org/schema/tx" xmlns:util="http://www.springframework.org/schema/util"

xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop.xsd
http://www.springframework.org/schema/cache http://www.springframework.org/schema/cache/spring-cache.xsd
http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd
http://www.springframework.org/schema/jdbc http://www.springframework.org/schema/jdbc/spring-jdbc.xsd
http://www.springframework.org/schema/jee http://www.springframework.org/schema/jee/spring-jee.xsd
http://www.springframework.org/schema/lang http://www.springframework.org/schema/lang/spring-lang.xsd
http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc.xsd
http://www.springframework.org/schema/task http://www.springframework.org/schema/task/spring-task.xsd
http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx.xsd
http://www.springframework.org/schema/util http://www.springframework.org/schema/util/spring-util.xsd">

<!-- 配置druid数据源 -->

<bean name="dataSource" class="com.alibaba.druid.pool.DruidDataSource"

init-method="init" destroy-method="close">

<!-- 数据库连接基础信息 -->

<property name="url" value="${jdbc_url}" />

<property name="username" value="${jdbc_username}" />

<property name="password" value="${jdbc_password}" />

<!-- 初始化连接大小 -->

<property name="initialSize" value="0" />

<!-- 连接池最大使用连接数量 -->

<property name="maxActive" value="1500" />

<!-- 连接池最小空闲 -->

<property name="minIdle" value="0" />

<!-- 获取连接最大等待时间 -->

<property name="maxWait" value="60000" />

<!-- 是否缓存preparedStatement，也就是PSCache。PSCache对支持游标的数据库性能提升巨大，比如说oracle。在mysql下建议关闭。 -->

<!-- <property name="poolPreparedStatements" value="true" /> <property

name="maxPoolPreparedStatementPerConnectionSize" value="33" /> -->

<!-- 验证数据库连接有效性，要求查询语句 -->

<property name="validationQuery" value="${validationQuery}" />

<!-- 建议配置为true，不影响性能，并且保证安全性。申请连接的时候检测，如果空闲时间大于timeBetweenEvictionRunsMillis，执行validationQuery检测连接是否有效。 -->

<property name="testWhileIdle" value="true" />

<!-- 申请连接时执行validationQuery检测连接是否有效，配置true会降低性能。 -->

<property name="testOnBorrow" value="false" />

<!-- 归还连接时执行validationQuery检测连接是否有效，配置true会降低性能 -->

<property name="testOnReturn" value="false" />

<!-- 配置间隔多久才进行一次检测，检测需要关闭的空闲连接，单位是毫秒 -->

<property name="timeBetweenEvictionRunsMillis" value="60000" />

<!-- 配置一个连接在池中最小生存的时间，单位是毫秒 -->

<property name="minEvictableIdleTimeMillis" value="25200000" />

<!-- 对于长时间不使用的连接强制关闭 -->

<property name="removeAbandoned" value="true" />

<!-- 关闭超过30分钟的空闲连接，1800秒，也就是30分钟 -->

<property name="removeAbandonedTimeout" value="1800" />

<!-- 关闭abanded连接时输出错误日志 -->

<property name="logAbandoned" value="true" />

<!-- 监控数据库 -->

<!-- <property name="filters" value="mergeStat" /> -->

<property name="filters" value="stat" />

</bean>

<!-- 配置druid监控spring jdbc -->

<bean id="druid-stat-interceptor"

class="com.alibaba.druid.support.spring.stat.DruidStatInterceptor" />

<bean id="druid-stat-pointcut" class="org.springframework.aop.support.JdkRegexpMethodPointcut"

scope="prototype">

<property name="patterns">

<list>

<value>spring.druid.service.*</value>

</list>

</property>

</bean>

<aop:config>

<aop:advisor advice-ref="druid-stat-interceptor"

pointcut-ref="druid-stat-pointcut" />

</aop:config>

</beans>

--> spring-jdbc.xml

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<?xml version="1.0" encoding="UTF-8"?>

<beans xmlns="http://www.springframework.org/schema/beans"

xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:aop="http://www.springframework.org/schema/aop"

xmlns:c="http://www.springframework.org/schema/c" xmlns:cache="http://www.springframework.org/schema/cache"

xmlns:context="http://www.springframework.org/schema/context"

xmlns:jdbc="http://www.springframework.org/schema/jdbc" xmlns:jee="http://www.springframework.org/schema/jee"

xmlns:lang="http://www.springframework.org/schema/lang" xmlns:mvc="http://www.springframework.org/schema/mvc"

xmlns:p="http://www.springframework.org/schema/p" xmlns:task="http://www.springframework.org/schema/task"

xmlns:tx="http://www.springframework.org/schema/tx" xmlns:util="http://www.springframework.org/schema/util"

xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop.xsd
http://www.springframework.org/schema/cache http://www.springframework.org/schema/cache/spring-cache.xsd
http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd
http://www.springframework.org/schema/jdbc http://www.springframework.org/schema/jdbc/spring-jdbc.xsd
http://www.springframework.org/schema/jee http://www.springframework.org/schema/jee/spring-jee.xsd
http://www.springframework.org/schema/lang http://www.springframework.org/schema/lang/spring-lang.xsd
http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc.xsd
http://www.springframework.org/schema/task http://www.springframework.org/schema/task/spring-task.xsd
http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx.xsd
http://www.springframework.org/schema/util http://www.springframework.org/schema/util/spring-util.xsd">

<!-- 使用 spring jdbc 模板-->

<bean id="jdbcTemplate " class="org.springframework.jdbc.core.JdbcTemplate">

<constructor-arg ref="dataSource" />

</bean>

<!-- <bean id="simpleJdbcInsert" class="org.springframework.jdbc.core.simple.SimpleJdbcInsert">

<constructor-arg ref="dataSource" />

</bean>

<bean id="simpleJdbcCall" class="org.springframework.jdbc.core.simple.SimpleJdbcCall">

<constructor-arg ref="dataSource" />

</bean> -->

</beans>

--> spring-mvc.xml

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<?xml version="1.0" encoding="UTF-8"?>

<beans xmlns="http://www.springframework.org/schema/beans"

xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:aop="http://www.springframework.org/schema/aop"

xmlns:c="http://www.springframework.org/schema/c" xmlns:cache="http://www.springframework.org/schema/cache"

xmlns:context="http://www.springframework.org/schema/context"

xmlns:jdbc="http://www.springframework.org/schema/jdbc" xmlns:jee="http://www.springframework.org/schema/jee"

xmlns:lang="http://www.springframework.org/schema/lang" xmlns:mvc="http://www.springframework.org/schema/mvc"

xmlns:p="http://www.springframework.org/schema/p" xmlns:task="http://www.springframework.org/schema/task"

xmlns:tx="http://www.springframework.org/schema/tx" xmlns:util="http://www.springframework.org/schema/util"

xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop.xsd
http://www.springframework.org/schema/cache http://www.springframework.org/schema/cache/spring-cache.xsd
http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd
http://www.springframework.org/schema/jdbc http://www.springframework.org/schema/jdbc/spring-jdbc.xsd
http://www.springframework.org/schema/jee http://www.springframework.org/schema/jee/spring-jee.xsd
http://www.springframework.org/schema/lang http://www.springframework.org/schema/lang/spring-lang.xsd
http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc.xsd
http://www.springframework.org/schema/task http://www.springframework.org/schema/task/spring-task.xsd
http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx.xsd
http://www.springframework.org/schema/util http://www.springframework.org/schema/util/spring-util.xsd">

<!-- 启动支持 mvc 的注解，比如 @Controller, @RequestMapping 等-->

<mvc:annotation-driven />

<!-- 自动扫描 controller 包下的所有类 -->

<context:component-scan base-package="spring.druid.controller" />

<!-- 设置视图解析工具 -->

<bean

class="org.springframework.web.servlet.view.InternalResourceViewResolver">

<!-- 设置文件前缀 -->

<property name="prefix" value="/WEB-INF/jsp/" />

<!-- 设置文件后缀 -->

<property name="suffix" value=".jsp" />

</bean>

</beans>

3. 其它相关配置文件

--> config.properties

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jdbc_url=jdbc:mysql://127.0.0.1:3306/test?useUnicode=true&characterEncoding=UTF-8&zeroDateTimeBehavior=convertToNull

jdbc_username=test

jdbc_password=test

driver_name=com.mysql.jdbc.Driver

validationQuery=SELECT 1

--> log4j.properties

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### \u8BBE\u7F6E###

log4j.rootLogger = info,warning,stdout,logfile,E

### \u8F93\u51FA\u4FE1\u606F\u5230\u63A7\u5236\u62AC ###

log4j.appender.stdout = org.apache.log4j.ConsoleAppender

log4j.appender.stdout.Target = System.out

log4j.appender.stdout.layout = org.apache.log4j.PatternLayout

log4j.appender.stdout.layout.ConversionPattern = [%-5p] %d{yyyy-MM-dd HH:mm:ss,SSS} method:%l%n%m%n

### \u8F93\u51FADEBUG \u7EA7\u522B\u4EE5\u4E0A\u7684\u65E5\u5FD7\u5230=E://logs/error.log ###

log4j.appender.logfile = org.apache.log4j.DailyRollingFileAppender

log4j.appender.logfile.File = D://logs/log.log

log4j.appender.logfile.Append = true

log4j.appender.logfile.Threshold = DEBUG

log4j.appender.logfile.layout = org.apache.log4j.PatternLayout

log4j.appender.logfile.layout.ConversionPattern = %-d{yyyy-MM-dd HH:mm:ss} [ %t:%r ] - [ %p ] %m%n

### \u8F93\u51FAERROR \u7EA7\u522B\u4EE5\u4E0A\u7684\u65E5\u5FD7\u5230=E://logs/error.log ###

log4j.appender.E = org.apache.log4j.DailyRollingFileAppender

log4j.appender.E.File =D://logs/error.log

log4j.appender.E.Append = true

log4j.appender.E.Threshold = ERROR

log4j.appender.E.layout = org.apache.log4j.PatternLayout

log4j.appender.E.layout.ConversionPattern = %-d{yyyy-MM-dd HH:mm:ss} [ %t:%r ] - [ %p ] %m%n

4. 配置 web.xml 文件

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<?xml version="1.0" encoding="UTF-8"?>

<web-app version="3.0" xmlns="http://java.sun.com/xml/ns/javaee"

xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"

xsi:schemaLocation="http://java.sun.com/xml/ns/javaee
http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd">
<display-name>spring.druid</display-name>

<!-- 加载配置文件 -->

<context-param>

<param-name>contextConfigLocation</param-name>

<param-value>classpath*:spring.xml</param-value>

</context-param>

<!-- spring -->

<listener>

<listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>

</listener>

<listener>

<listener-class>org.springframework.web.util.IntrospectorCleanupListener</listener-class>

</listener>

<!-- spring mvc -->

<servlet>

<servlet-name>springMvc</servlet-name>

<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>

<init-param>

<param-name>contextConfigLocation</param-name>

<param-value>classpath:spring-mvc.xml</param-value>

</init-param>

<load-on-startup>1</load-on-startup>

<async-supported>true</async-supported>

</servlet>

<servlet-mapping>

<servlet-name>springMvc</servlet-name>

<url-pattern>/</url-pattern>

</servlet-mapping>

<!-- druid 监控 -->

<filter>

<filter-name>druidWebStatFilter</filter-name>

<filter-class>com.alibaba.druid.support.http.WebStatFilter</filter-class>

<init-param>

<param-name>exclusions</param-name>

<param-value>/assets/*,*.css,*.js,*.gif,*.jpg,*.png,*.ico,*.eot,*.svg,*.ttf,*.woff,*.jsp,*.tpl,/druid/*</param-value>

</init-param>

</filter>

<filter-mapping>

<filter-name>druidWebStatFilter</filter-name>

<url-pattern>/*</url-pattern>

</filter-mapping>

<servlet>

<servlet-name>druidStatView</servlet-name>

<servlet-class>com.alibaba.druid.support.http.StatViewServlet</servlet-class>

</servlet>

<servlet-mapping>

<servlet-name>druidStatView</servlet-name>

<url-pattern>/druid/*</url-pattern>

</servlet-mapping>

<!-- log4j -->

<context-param>

<param-name>log4jConfigLocation</param-name>

<param-value>classpath:log4j.properties</param-value>

</context-param>

<context-param>

<param-name>webAppRootKey</param-name>

<param-value>spring-druid.root </param-value>

</context-param>

<listener>

<listener-class>org.springframework.web.util.Log4jConfigListener</listener-class>

</listener>

<!-- 设置请求编码格式 -->

<filter>

<filter-name>encodingFilter</filter-name>

<filter-class>org.springframework.web.filter.CharacterEncodingFilter</filter-class>

<init-param>

<param-name>encoding</param-name>

<param-value>UTF-8</param-value>

</init-param>

</filter>

<filter-mapping>

<filter-name>encodingFilter</filter-name>

<url-pattern>/*</url-pattern>

</filter-mapping>

</web-app>

5. 创建表

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CREATE TABLE `spring_druid` (

`id` int(10) unsigned NOT NULL AUTO_INCREMENT,

`test_name` varchar(255) DEFAULT NULL,

PRIMARY KEY (`id`)

) ENGINE=InnoDB AUTO_INCREMENT=3 DEFAULT CHARSET=utf8;

6. 创建单元测试类

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package spring.druid.junitTest;

import java.sql.Connection;

import java.sql.PreparedStatement;

import java.sql.ResultSet;

import java.sql.SQLException;

import java.sql.Statement;

import java.util.Map;

import org.junit.Test;

import org.junit.runner.RunWith;

import org.springframework.beans.factory.annotation.Autowired;

import org.springframework.jdbc.core.JdbcTemplate;

import org.springframework.test.context.ContextConfiguration;

import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;

import com.alibaba.druid.pool.DruidDataSource;

@RunWith(SpringJUnit4ClassRunner.class)

@ContextConfiguration(value = { "classpath:spring.xml" })

public class SpringDruidJunitTest {

@Autowired

private JdbcTemplate jdbcTemplate;

@Autowired

private DruidDataSource dataSource;

@Test

public void testInsert() {

jdbcTemplate.execute("insert into spring_druid (test_name) values ('spring')");

}

@Test

public void testQuery() {

Map<String, Object> map = jdbcTemplate.queryForMap("select * from spring_druid limit 1");

System.out.println(map);

}

@Test

public void testDruidDataSource() throws SQLException {

Connection conn = dataSource.getConnection();

conn.setAutoCommit(false);

PreparedStatement pstat = conn.prepareStatement("insert into spring_druid(test_name) values (?)",

Statement.RETURN_GENERATED_KEYS);

pstat.setString(1, "druid");

pstat.executeUpdate();

Statement stat = conn.createStatement();

ResultSet rs = stat.executeQuery("select * from spring_druid");

conn.commit();

while (rs.next()) {

System.out.println("id=" + rs.getInt("id") + ", test_name=" + rs.getString("test_name"));

}

}

}

7. 创建 controller 类

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package spring.druid.controller;

import java.util.Map;

import javax.servlet.http.HttpServletRequest;

import org.springframework.beans.factory.annotation.Autowired;

import org.springframework.jdbc.core.JdbcTemplate;

import org.springframework.stereotype.Controller;

import org.springframework.web.bind.annotation.RequestMapping;

@Controller

public class SpringDruidController {

@Autowired

private JdbcTemplate jdbcTemplate;

@RequestMapping(value = "/test")

public String m(final HttpServletRequest request) {

Map<String, Object> map = jdbcTemplate.queryForMap("select * from spring_druid limit 1");

request.setAttribute("test", map);

return "test";

}

}

8. 创建 test.jsp 文件

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<%@ page language="java" contentType="text/html; charset=UTF-8"

pageEncoding="UTF-8"%>

<!DOCTYPE html>

<html>

<head>

<meta charset="UTF-8">

<title>Insert title here</title>

</head>

<body>

<h2>${test}</h2>

</body>

</html>

9. 运行结果



10. druid 监控页面

在项目根目录后加 /druid 即可访问 druid 的数据源监控页面



附件：源码 http://download.csdn.net/download/u011310774/9223919
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