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利用jsp提交表單出現(xiàn)問題

利用jsp提交表單，不能訪問到我的控制器

<form?method="post"?th:action="@{/Login_u}">		用戶Id：<input?type="text"?name="user_id"><br>?密碼：<input			type="text"?name="user_pw"><br>?<input?type="submit"			name="sub"?value="登入"><br>	</form>

@RequestMapping("/Login_u")	public?String?login(@RequestParam(value?=?"user_id",?required?=?false)?Integer?user_Id,			@RequestParam(value?=?"user_pw",?required?=?false)?String?pw)?{		System.out.println("test?嘗試跳轉(zhuǎn)");		if?(user_Id?!=?null)?{			Account?account?=?new?Account();			account?=?re.findById(user_Id).orElse(null);			if(account==null)				return?"redirect:/wellcome";			if?(account.getPassword().equals(pw))?{				return?"redirect:/Main";			}		}		return?"redirect:/Login";	}

慕粉1225084206

2020-01-17

源自：2小時上手SpringBoot 5-1

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2 回答

慕仔1333040
2020-02-08

package?com.imooc.luckymoney;

import?org.springframework.stereotype.Controller;
import?org.springframework.web.bind.annotation.*;

@Controller
public?class?HelloController?{

????@RequestMapping("/Login")
????public?String?login()?{
????????return?"login";
????}

????@RequestMapping("/Login_u")
????public?String?login(@RequestParam(value?=?"user_id",?required?=?false)?Integer?user_Id,
????????????????????????@RequestParam(value?=?"user_pw",?required?=?false)?String?pw)?{
????????System.out.println("test?嘗試跳轉(zhuǎn)");
????????if?(user_Id?!=?null)
????????{
????????????System.out.println(user_Id);
????????????System.out.println(pw);
????????}
????????return?"redirect:/Login";
????}
}

<html?xmlns:th="http://www.w3.org/1999/xhtml">
????<head>
????????<title>hello</title>
????</head>
????<body>
????????登錄表單<br/>
????????<form?method="post"?th:action="@{/Login_u}">
????????????用戶Id：<input?type="text"?name="user_id"><br>
????????????密碼：<input?type="text"?name="user_pw"><br>
????????????<input?type="submit"?name="sub"?value="登入"><br>
????????</form>
????</body>
</html>

我試了一下你的代碼可以正常運(yùn)行；下次問問題時最好把代碼貼完整；