Question

我正在开发Spring-MVC。我正在使用JSP页面，该页面使用事先自动生成的变量进行调用，我必须将它们复制到控制器中以进行进一步处理。但是它的值是{variablename}。我将发布代码以及我要做的事情。请看看。

控制台输出：

Token value is{token}
Token verification failed
Token in controller is{token}
User and password is :myemail@gmail.com and password checkpassword

控制器代码：

 @RequestMapping(value = "/resetpassword")
    public String newPasswordPage(Model model){
        model.addAttribute("person", new Person());
        return "resetpassword";
    }
   @RequestMapping(value = "/newpassword/{token}")
   public String changePasswordFunction(@ModelAttribute("person") Person person, Model model, @PathVariable("token") String token){
        if(person.getNewpassword() == null){

            return "resetpassword";
        } else {
            personService.changePassword(token,person.getUsername(),person.getPassword());
            System.out.println("Token in controller is"+token);
            System.out.println("User and password is :"+person.getUsername()+" and password "+person.getNewpassword());
            model.addAttribute("person",person);
            return "redirect:/";
        }
    }

Resetpassword.jsp：

<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<html>
<head>
    <title></title>
</head>
<body>

<c:url var="addAction" value="/newpassword/{token}" ></c:url>
<form:form action="${addAction}" commandName="person">
    <table>
        <tr>
            <td>
                <form:label path="username">
                    <spring:message text="username"/>
                </form:label>
            </td>
            <td>
                <form:input path="username"  />
            </td>
        </tr>

        <tr>
            <td>
                <form:label path="token">
                    <spring:message text="token"/>
                </form:label>
            </td>
            <td>
                <form:input path="token"  />
            </td>
        </tr>


        <tr>
            <td>
                <form:label path="newpassword">
                    <spring:message text="newpassword"/>
                </form:label>
            </td>
            <td>
                <form:input path="newpassword"  />
            </td>
        </tr>
        <tr>
            <td>
                <input name="submit" type="submit" value="Submit" />
            </td>
        </tr>
    </table>
</form:form>
</body>
</html>

Answer 1

我认为你只是在c：url中错过了你的令牌的$。请尝试

<c:url var="addAction" value="/newpassword/${token}" ></c:url>

Answer 2

我发现调试此类控制器问题非常有用的一种方法是使用spring MVC Test Framework编写单元测试：

import static org.springframework.test.web.servlet.request.MockMvcRequestBuilders.get;
import static org.springframework.test.web.servlet.result.MockMvcResultMatchers.status;

import org.junit.Before;
import org.junit.Test;
import org.springframework.test.web.servlet.MockMvc;
import org.springframework.test.web.servlet.ResultActions;
import org.springframework.test.web.servlet.setup.MockMvcBuilders;

public class YourControllerTest {

    private YourController yourController;

    private MockMvc mockMvc;

    @Before
    public void setup() {
        yourController = new YourController();
        mockMvc = MockMvcBuilders.standaloneSetup(yourController).build();

    }

    @Test
    public void testChangePasswordFunction() throws Exception {

        ResultActions resultActions = mockMvc
                .perform(get("/newpassword/myemail@gmail.com:1416653626993:VZelDNRi9pU_ZD6bCzuyFMaJU-Y2pXU7wajMD4I8gtg"));

        resultActions.andExpect(status().isFound());


    }
}

运行上面的测试会将以下内容输出到控制台（您可能想要注释掉调用personService.changePassword（）以简化单元测试设置，或者使用模拟框架来模拟人员服务对象）：

Token in controller ismyemail@gmail.com:1416653626993:VZelDNRi9pU_ZD6bCzuyFMaJU-Y2pXU7wajMD4I8gtg

现在，如果你想提取似乎被＆＃34;分开的变量：＆＃34;您可以将请求映射方法签名更改为：

@RequestMapping(value = "/newpassword/{token1}:{token2}:{token3}")
public String changePasswordFunction(@ModelAttribute("person") Person person, Model model, @PathVariable("token1") String token1, @PathVariable("token2") String token2, @PathVariable("token3") String token3)

Spring MVC：无法在控制器中提取pathvariable值

2 个答案: