Java 系列之spring学习--spring搭建（一）

一、新建maven项目

二、引入spring jar包

<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>wjxiaoqiao</groupId><artifactId>wj</artifactId><packaging>war</packaging><version>0.0.1-SNAPSHOT</version><name>wj Maven Webapp</name><url>http://maven.apache.org</url><dependencies><!-- https://mvnrepository.com/artifact/org.springframework/spring-context -->
<dependency><groupId>org.springframework</groupId><artifactId>spring-context</artifactId><version>5.0.2.RELEASE</version>
</dependency><!-- https://mvnrepository.com/artifact/javax.servlet/javax.servlet-api -->
<dependency><groupId>javax.servlet</groupId><artifactId>javax.servlet-api</artifactId><version>4.0.0</version><scope>provided</scope>
</dependency><dependency><groupId>junit</groupId><artifactId>junit</artifactId><version>3.8.1</version><scope>test</scope></dependency></dependencies><build><finalName>wj</finalName></build>
</project>

三、编写配置文件

<?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"xsi:schemaLocation="http://www.springframework.org/schema/beanshttp://www.springframework.org/schema/beans/spring-beans.xsdhttp://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc.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 http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx.xsd"><bean id="test01" class="test.test01" /> 
</beans>

四、测试类

package test;public class test01 {public test01(){System.out.println("test01");}public void prints(){System.out.println("prints");}
}

package test;import java.io.IOException;
import java.io.PrintWriter;import javax.servlet.ServletException;
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;public class aservlet extends HttpServlet {public void doGet(HttpServletRequest request, HttpServletResponse response)throws ServletException, IOException {ApplicationContext context=new ClassPathXmlApplicationContext("applicationContext.xml");test01 test01=(test01)context.getBean("test01");test01.prints();}}