标签：void intern att oca min 超链接 ansi 使用 encoding
最近需要使用SpringMVC做一个小项目，之前对SpringMVC没什么了解，所以先写一个SpringMVC的小Demo练习一下。
IDE = Eclipse
首先创建一个Maven的webapp项目，Jar包的管理就交给Maven来完成；POM内容如下：
<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.tuo.example</groupId> <artifactId>SpringMVC</artifactId> <packaging>war</packaging> <version>0.0.1-SNAPSHOT</version> <name>SpringMVC Maven Webapp</name> <url>http://maven.apache.org</url> <properties> <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding> <springversion>4.1.2.RELEASE</springversion> <junitversion>3.8.1</junitversion> </properties> <dependencies> <dependency> <groupId>junit</groupId> <artifactId>junit</artifactId> <version>3.8.1</version> <scope>test</scope> </dependency> <!-- Spring --> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-aop</artifactId> <version>${springversion}</version> <type>jar</type> <scope>compile</scope> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-aspects</artifactId> <version>${springversion}</version> <type>jar</type> <scope>compile</scope> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-beans</artifactId> <version>${springversion}</version> <type>jar</type> <scope>compile</scope> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-context</artifactId> <version>${springversion}</version> <type>jar</type> <scope>compile</scope> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-context-support</artifactId> <version>${springversion}</version> <type>jar</type> <scope>compile</scope> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-core</artifactId> <version>${springversion}</version> <type>jar</type> <scope>compile</scope> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-expression</artifactId> <version>${springversion}</version> <type>jar</type> <scope>compile</scope> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-jdbc</artifactId> <version>${springversion}</version> <type>jar</type> <scope>compile</scope> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-jms</artifactId> <version>${springversion}</version> <type>jar</type> <scope>compile</scope> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-orm</artifactId> <version>${springversion}</version> <type>jar</type> <scope>compile</scope> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-oxm</artifactId> <version>${springversion}</version> <type>jar</type> <scope>compile</scope> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-tx</artifactId> <version>${springversion}</version> <type>jar</type> <scope>compile</scope> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-web</artifactId> <version>${springversion}</version> <type>jar</type> <scope>compile</scope> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-webmvc</artifactId> <version>${springversion}</version> <type>jar</type> <scope>compile</scope> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-test</artifactId> <version>${springversion}</version> <type>jar</type> <scope>compile</scope> </dependency> <!-- servlet & jstl--> <dependency> <groupId>javax.servlet</groupId> <artifactId>jstl</artifactId> <version>1.2</version> <type>jar</type> <scope>compile</scope> </dependency> <!-- common --> <dependency> <groupId>commons-collections</groupId> <artifactId>commons-collections</artifactId> <version>3.1</version> </dependency> <dependency> <groupId>commons-logging</groupId> <artifactId>commons-logging</artifactId> <version>1.1</version> </dependency> </dependencies> <build> <finalName>SpringMVC</finalName> </build> </project>
web.xml作为前端的配置文件，需要在其中指定以SpringMVC方式处理HTTP请求，即配置servlet标签为SpringMVC，并且指明使用哪个文件作为SpringMVC的配置文件。
<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://java.sun.com/xml/ns/javaee" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd" id="WebApp_ID" version="2.5">
<display-name>SpringMVC01</display-name>
<welcome-file-list>
<welcome-file>index.html</welcome-file>
</welcome-file-list>
<!-- configure springmvc dispatcher for Servlet -->
<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>
</servlet>
<servlet-mapping>
<servlet-name>springmvc</servlet-name>
<url-pattern>*.do</url-pattern>
</servlet-mapping>
</web-app>
如上面web.xml中所示，我这里使用spring-mvc.xml最为SpringMVC的配置文件，并将其放在Maven项目默认的resoucres目录下：
其内容为：
<?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"> <!-- 使用注解的包，包括子集 --> <context:component-scan base-package="com.example.tuo"/> <!-- 视图解析器 --> <bean id="viewResolver" class="org.springframework.web.servlet.view.InternalResourceViewResolver"> <property name="prefix" value="/WEB-INF/jsp/" /> <property name="suffix" value=".jsp"></property> </bean> </beans>
到此，SpringMVC的配置部分就完成了；下面需要写 controller 类 以及 HTML和JSP 页面。
基于我们在web.xml里面里面关于 “servlet-mapping” 的定义，我们需要截获的HTTP request 为 *.do(例如：http://localhost:8080/SpringMVC/HelloSpringMVC.do)
在这里，我们不直接输入xxx.do,通过web.xml里面定义的index.html中的超链接跳转到目标地址（HelloSpringMVC.do）。HTML如下：
<!DOCTYPE html> <html> <head> <meta charset="UTF-8"> <title>SpringMVC start page</title> </head> <body> <a href="sayHello.do">Hello springMVC!</a> </body> </html>
讲 controller 类放在controller包下，其内容很简单，就是利用MVC中的Model返回一个message到JSP，代码如下
package com.example.tuo.controller; import org.springframework.stereotype.Controller; import org.springframework.ui.Model; import org.springframework.web.bind.annotation.RequestMapping; @Controller public class HelloSpringMVC { @RequestMapping("sayHello") public void sayHello(Model model){ model.addAttribute("message", "Hello SpringMVC, I am coming!"); } }
还是基于我们在web.xml里面的视图解析器定义：
<!-- 视图解析器 --> <bean id="viewResolver" class="org.springframework.web.servlet.view.InternalResourceViewResolver"> <property name="prefix" value="/WEB-INF/jsp/" /> <property name="suffix" value=".jsp"></property> </bean>
我们在项目里面建立一个sayHello.jsp, 请注意这里的前后缀以及在controller类里面定义的@RequestMapping的内容， 把它们连接在一起应指向了JSP页面：prefix+RequestMapping("sayHello")+suffix = /WEB-INF/jsp/sayHello.jsp， 如图所示：
JSP页面本身的内容就很简单了，只是简单的输出在controller类里面定义的message：
<%@ page language="java" contentType="text/html; charset=ISO-8859-1" pageEncoding="ISO-8859-1"%> <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> <html> <head> <meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"> <title>SpringMVC page</title> </head> <body> ${message} </body> </html>
OK，我们的所有编码工作到这里就全部完成。启动Tomcat加载并运行项目，在浏览器中输入导航页面的路径：http://localhost:8080/SpringMVC/后，我们便来到了HTML页面：
在页面上点击超链接，即可跳转到sayHello.jsp；我们可以看到在view中输出了我们在controller里面定义的内容“Hello SpringMVC, I am coming!”;
Well done！我们的SpringMVC项目运行正确啦 :)
标签：void intern att oca min 超链接 ansi 使用 encoding
原文地址：http://www.cnblogs.com/atuotuo/p/6512420.html
