一:内容
SpringMVC,它属于Spring基本框架里面的一个组成部分,在实际开发过程中,接收浏览器请求响应,对数据进行数据处理,然后返回页面进行显示。
二:入门示例:
1.创建web工程,并导入相应的jar包
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2.新建SpringMVC全局配置文件
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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:mvc=
"http://www.springframework.org/schema/mvc"
xmlns:context=
"http://www.springframework.org/schema/context"
xmlns:aop=
"http://www.springframework.org/schema/aop"
xmlns:tx=
"http://www.springframework.org/schema/tx"
xsi:schemaLocation="http:
//www.springframework.org/schema/beans
http:
//www.springframework.org/schema/beans/spring-beans-4.2.xsd
http:
//www.springframework.org/schema/mvc
http:
//www.springframework.org/schema/mvc/spring-mvc-4.2.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-4.2.xsd
http:
//www.springframework.org/schema/tx
http:
//www.springframework.org/schema/tx/spring-tx.xsd">
</beans>
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3.在web。xml文件中配置前端过滤器
<?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_3_0.xsd" id="WebApp_ID" version="3.0">
<display-name>SpringMVC_01</display-name>
<!-- 配置前端控制器DispatcherServlet -->
<servlet>
<servlet-name>springmvc</servlet-name>
<servlet-
class
>org.springframework.web.servlet.DispatcherServlet</servlet-
class
>
<init-param>
<param-name>contextConfigLocation</param-name>
<!-- 对应上一步创建全局配置文件的文件名以及目录 -->
<param-value>classpath:springmvc.xml</param-value>
</init-param>
</servlet>
<servlet-mapping>
<servlet-name>springmvc</servlet-name>
<url-pattern>*.
do
</url-pattern>
</servlet-mapping>
</web-app>
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4.编写处理器Handler
package
cn.gzsxt.controller;
import
javax.servlet.http.HttpServletRequest;
import
javax.servlet.http.HttpServletResponse;
import
org.springframework.web.servlet.ModelAndView;
import
org.springframework.web.servlet.mvc.Controller;
public
class
HelloController
implements
Controller{
@Override
public
ModelAndView handleRequest(HttpServletRequest request,
HttpServletResponse response)
throws
Exception {
ModelAndView modelView =
new
ModelAndView();
//类似于 request.setAttribute()
modelView.addObject(
"name"
,
"张三"
);
modelView.setViewName(
"/WEB-INF/view/index.jsp"
);
return
modelView;
}
}
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5.配置Handler,处理器映射器,配置处理器适配器,试图解析器
<!-- 配置Handler -->
<bean name=
"/hello.do"
class
=
"com.ys.controller.HelloController"
/>
<!-- 配置处理器映射器
将bean的name作为url进行查找,需要在配置Handler时指定bean name(就是url)-->
<bean
class
=
"org.springframework.web.servlet.handler.BeanNameUrlHandlerMapping"
/>
<!-- 配置处理器适配器,所有适配器都得实现 HandlerAdapter接口 -->
<bean
class
=
"org.springframework.web.servlet.mvc.SimpleControllerHandlerAdapter"
/>
<!-- 配置视图解析器
进行jsp解析,默认使用jstl标签,classpath下得有jstl的包-->
<bean
class
=
"org.springframework.web.servlet.view.InternalResourceViewResolver"
/>
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6.在WEB-INF/view目录下创建index.jsp文件
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<%@ page language= "java" contentType= "text/html; charset=UTF-8"
pageEncoding=
"UTF-8"
%>
<!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=UTF-8"
>
<title>Insert title here</title>
</head>
<body>
hello:${name}
</body>
</html>
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7.浏览器输出:
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