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SpringMVC支持直接使用ServletAPI 作为目标方法的入参。
MVC 的 Handler 方法可以接受如下ServletAPI 类型的参数：
• HttpServletRequest
• HttpServletResponse
• HttpSession
• java.security.Principal
• Locale
• InputStream
• OutputStream
• Reader
• Writer
例如：
index.jsp页面
<%--
Created by IntelliJ IDEA.
User: 23369
Date: 2019/3/24
Time: 18:29
To change this template use File | Settings | File Templates.
--%>
<%@ page contentType="text/html;charset=gbk" language="java" %>
<html>
<head>
<title>$Title$</title>
</head>
<body>
<a href="HelloWorld3/testServletAPI">testServletAPI</a>
</body>
</html>
HelloWorld3.class类
package com.helloworld;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
@Controller
@RequestMapping("HelloWorld3")
public class HelloWorld3 {
private String success = "success";
@RequestMapping("testServletAPI")
public String testServletAPI(HttpServletRequest request, HttpServletResponse response){
System.out.println(request + " " + response);
return success;
}
}