1、HelloController.java
通过model.addAttribute(key,value)进行传值
package zttc.itat.controller;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
@Controller
public class HelloController{
//RequestMapping表示用哪个URL来对应
@RequestMapping{{"/hello","/"}}
public String hello(String username, Model model){
System.out.println("hello");
model.addAttribute("username", username);
model.addAttribute(username);//默认使用对象的类型作为key,即model.addAttribute("string",username)
System.out.println(username);
return "hello";
}
@RequestMapping{{"/welcome"}}
public String welcome(){
System.out.println("welcome");
return "welcome";
}
}
2、hello.jsp
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title></title>
</head>
<body>
<h1>hello!! ${username}</h1>
<h2>hello!!!! ${string}</h2>
</body>
在客户端地址栏输入：localhost……/hello?username=value