我有一个控制器方法如下。
@RequestMapping("/edit/{jobId}")
public String editJob(@PathVariable("jobId") Integer jobId,Model model){
model.addAttribute("id",jobId);
return "edit";
}
我在其中传递jobId以通过id获取作业的实例并返回"编辑"字符串,以便根据InternalResourceViewResolver映射到edit.jsp。但是,当我点击链接时,它转到/ edit / 44,在这种情况下,44将是编辑链接所属的作业的ID。最后我收到错误,说明找不到资源。
针对home.jsp
<%@ taglib uri="http://www.springframework.org/tags" prefix="spring"%>
<%@ taglib uri="http://java.sun.com/jsp/jstl/core" prefix="c"%>
<%@ taglib uri="http://www.springframework.org/tags/form" prefix="form"%>
<%@ page session="false"%>
<html>
<head>
<link rel="stylesheet" type="text/css"
href="<c:url value="/resources/css/style.css"/>" />
<link rel="stylesheet"
href="http://maxcdn.bootstrapcdn.com/bootstrap/3.2.0/css/bootstrap.min.css" />
<title>Home</title>
</head>
<body id="main">
<div class="container">
<h2 style="color:white">All posted jobs</h2>
<c:if test="${empty jobList}">
<h6>No Job Post Yet</h6>
</c:if>
<c:if test="${!empty jobList}">
<c:forEach items="${jobList}" var="job">
<div class="panel panel-info">
<div class="panel-heading">
<h3 class="panel-title">${job.title }</h3>
</div>
<div class="panel-body">${job.description }</div>
<div class="panel-footer">
<a id="link" href="delete/${job.id }">Delete</a>
<a id="link" href="edit/${job.id}">Edit</a>
</div>
</div>
</c:forEach>
</c:if>
<section>
<form:form method="post" action="add" modelAttribute="job"
class="form-horizontal">
<div class="form-group" id="addForm">
<form:label class="control-label" path="title">Title:</form:label>
<form:input class="form-control" path="title"/>
<form:label class="control-label" path="description">Description</form:label>
<form:textarea class="form-control" rows="5" path="description" />
<button class="btn btn-success">
<span class="glyphicon glyphicon-plus-sign"></span> Add a Job
</button>
</div>
<a id="addJob" href="add">+</a>
</form:form>
</section>
</div>
JobController.java
package com.job.src;
import java.util.Map;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.web.bind.annotation.PathVariable;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import com.job.src.model.Job;
import com.job.src.services.JobService;
@Controller
public class JobController {
@Autowired
private JobService jobService;
@RequestMapping(value= "/")
public String listJobs(Map<String,Object> map){
map.put("job", new Job());
map.put("jobList", jobService.listJobs());
return "home";
}
@RequestMapping(value= "/add", method=RequestMethod.POST)
public String addJob(Job job){
jobService.addJob(job);
return "redirect:/";
}
@RequestMapping("/delete/{jobId}")
public String deleteJob(@PathVariable("jobId") Integer jobId){
jobService.removeJob(jobId);
return "redirect:/";
}
@RequestMapping("/edit/{jobId}")
public String editJob(@PathVariable("jobId") Integer jobId,Model model){
model.addAttribute("id",jobId);
return "edit";
}
}
edit.jsp文件
<%@ taglib uri="http://www.springframework.org/tags" prefix="spring"%>
<%@ taglib uri="http://java.sun.com/jsp/jstl/core" prefix="c"%>
<%@ taglib uri="http://www.springframework.org/tags/form" prefix="form"%>
<%@ page language="java" contentType="text/html; charset=ISO-8859-1"
pageEncoding="ISO-8859-1"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<link rel="stylesheet" type="text/css"
href="<c:url value="/resources/css/style.css"/>" />
<link rel="stylesheet"
href="http://maxcdn.bootstrapcdn.com/bootstrap/3.2.0/css/bootstrap.min.css" />
<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
<title>Insert title here</title>
</head>
<body>
<form:form method="post" action="editSuccess" modelAttribute="job"
class="form-horizontal">
<div class="form-group" id="addForm">
<form:label class="control-label" path="title">Title: </form:label>
<form:input class="form-control" path="title" />
<form:label class="control-label" path="description">Description</form:label>
<form:textarea class="form-control" rows="5" path="description" />
<button class="btn btn-success">
<span class="glyphicon glyphicon-plus-sign"></span> Add a Job
</button>
</div>
</form:form>
答案 0 :(得分:4)
在editJob
方法中,您只返回带有模型属性的作业ID到edit.jsp
。但实际上在edit.jsp页面上你需要作业对象,所以你需要通过id获取作业对象将其添加为模型属性。
@RequestMapping("/edit/{jobId}")
public String editJob(@PathVariable("jobId") Integer jobId,Model model){
//model.addAttribute("id",jobId); this is wrong
Job job = jobService.getJobById(jobId);
//write method in jobservice to get job by id i.e. getJobById(Integer jobId);
model.addAttribute("job",job)
return "edit";
}