首先，找齐Spring框架中IoC功能、aop功能、JdbcTemplate功能所需的jar包，当前13个Jar包
1、Spring压缩包中的四个核心JAR包，实现IoC控制反转的根据xml配置文件或注解生成对象
beans 、context、core 和expression
下载地址：
https://pan.baidu.com/s/1qXLHzAW
2、以及日志jar包，以便查看相关执行细节
commons-logging 和log4j
下载地址：
https://pan.baidu.com/s/1mimTW5i
3、再增加一个
spring-aop-5.0.1.RELEASE.jar (用于注解，在Spring-framework库中包含）
4、再增加
spring-aspects-5.0.1.RELEASE.jar (在Spring-framework库中包含）
aspectjweaver-1.8.12.jar (官方下载地址 http://mvnrepository.com/artifact/org.aspectj/aspectjweaver）
aopalliance-1.0.jar (官方下载地址 http://mvnrepository.com/artifact/aopalliance/aopalliance/1.0）
实现aop功能，增强相关的切入点
5、JdbcTemplate功能所需Jar包
spring-jdbc-4.2.4.RELEASE.jar
spring-tx-4.2.4.RELEASE.jar
spring 框架jar包下载地址
链接: https://pan.baidu.com/s/1bpydNGV 密码: 2kvk
6、连接mysql数据库jar包
mysql-connector-java-5.1.7-bin.jar
下载地址：链接: https://pan.baidu.com/s/1geBRqqn 密码: 8jxm
应用Spring框架的JdbcTemplate方法删除数据库中数据
package com.swift; import org.springframework.jdbc.core.JdbcTemplate; import org.springframework.jdbc.datasource.DriverManagerDataSource; import org.springframework.stereotype.Component; @Component(value="jdbcTemplateDemo") public class JdbcTemplateDemo { public boolean delete(String username) { DriverManagerDataSource dataSource=new DriverManagerDataSource(); dataSource.setDriverClassName("com.mysql.jdbc.Driver"); dataSource.setUrl("jdbc:mysql://localhost:3306/sw_database"); dataSource.setUsername("root"); dataSource.setPassword("root"); JdbcTemplate jdbcTemplate=new JdbcTemplate(dataSource); int count=jdbcTemplate.update("delete from sw_user where username=?", username); if(count!=0) { return true; } return false; } }
注解方法生成对象，所需xml配置文件代码：
<?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:context="http://www.springframework.org/schema/context" xmlns:aop="http://www.springframework.org/schema/aop" 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 http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop.xsd"> <!-- 开启注解扫描——对象和属性 --> <context:component-scan base-package="com.swift"></context:component-scan> <!-- 开启aop注解方法 --> <aop:aspectj-autoproxy></aop:aspectj-autoproxy> </beans>
调用JdbcTemplate删除数据库信息的Servlet类代码：
package com.swift; import java.io.IOException; import javax.servlet.ServletException; import javax.servlet.annotation.WebServlet; import javax.servlet.http.HttpServlet; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse; import org.springframework.context.ApplicationContext; import org.springframework.context.support.ClassPathXmlApplicationContext; @WebServlet("/test") public class ServletTest extends HttpServlet { private static final long serialVersionUID = 1L; public ServletTest() { super(); } protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { response.getWriter().append("Served at: ").append(request.getContextPath()); @SuppressWarnings("resource") ApplicationContext context=new ClassPathXmlApplicationContext("aop.xml"); JdbcTemplateDemo jdbcTemplateDemo=(JdbcTemplateDemo) context.getBean("jdbcTemplateDemo"); if(jdbcTemplateDemo.delete("wangwu")) { response.getWriter().append("delete success!"); }else { response.getWriter().append("delete success!"); } } protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { doGet(request, response); } }
