控制器类名称处理映射的好好处是：
如果项目是hello,WelcomeController是控制器,那么访问地址是：
http://localhost:8080/hello/welcome
http://localhost:8080/hello/welcome.html
http://localhost:8080/hello/welcomeaaa.html
http://localhost:8080/hello/welcome([a-zA-Z*]).html 这样的无限配置
需要引入相应的类
<bean class="org.springframework.web.servlet.mvc.support.ControllerClassNameHandlerMapping" />
然后接着添加想要访问的控制器类bean如：
<bean class="chapter2.web.controller.HelloController" /> <bean class="chapter2.web.controller.WelcomeController" />
来看实例：
WelcomeController.java
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.springframework.web.servlet.ModelAndView;
import org.springframework.web.servlet.mvc.AbstractController;
public class WelcomeController extends AbstractController {
@Override
protected ModelAndView handleRequestInternal(HttpServletRequest request, HttpServletResponse response) throws Exception {
// TODO Auto-generated method stub
ModelAndView mv = new ModelAndView("welcome");
mv.addObject("message", "welcome spring mvc!");
return mv;
}
}
在xxx-servlet.xml中添加支持的spring类
<!-- 控制器类名称处理映射 --> <bean class="org.springframework.web.servlet.mvc.support.ControllerClassNameHandlerMapping" /> <bean class="chapter2.web.controller.WelcomeController"/>
welcome.jsp
<%@ page language="java" contentType="text/html; charset=utf-8" pageEncoding="utf-8"%>
<%@ page isELIgnored="false" %>
<!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>welcome</title>
</head>
<body>
<h2>welcome</h2>
${message}
</body>
</html>
运行项目：
http://localhost:8080/hello/welcome
http://localhost:8080/hello/welcome.html
http://localhost:8080/hello/welcomeaaa.html