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我有方法Spring MVC中项目的控制器：Spring MVC的错误400：客户端发送的请求是语法不正确
//download resume
//----------------------------------------------------------------------
//@RequestMapping(value="/download/{fileName}",method=RequestMethod.GET)
@RequestMapping(value="/downlo",method=RequestMethod.GET)
public void downloadPDFResource(HttpServletRequest request,
HttpServletResponse response){
// @PathVariable("fileName") String fileName) {
//If user is not authorized - he should be thrown out from here itself
String fileName="Ente Kadha - Madhavikkutty.pdf";
//Career c=cardao.retrieveProfile(a_id);
//c.setA_id(a_id);
//String fileName=c.getResumeDoc();
System.out.println("filename i got :"+fileName);
//Authorized user will download the file
String dataDirectory = request.getServletContext().getRealPath("/WEB-INF/downloads/");
Path file = Paths.get(dataDirectory, fileName);
if (Files.exists(file)) {
response.setContentType("application/pdf");
response.addHeader("Content-Disposition", "attachment; filename=" + fileName);
try {
Files.copy(file, response.getOutputStream());
response.getOutputStream().flush();
} catch (IOException ex) {
ex.printStackTrace();
}
}
else
{
System.out.println("\n\nFile not found!!\n\n");
System.out.println(file);
}
}
这段代码实际上works.The文件下载成功，当我发送请求上述控制器，从下面给出jsp页面：
<%@page contentType="text/html" pageEncoding="UTF-8"%>
<%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core"%>
<%@ taglib prefix="spring" uri="http://www.springframework.org/tags"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
<title>Hello</title>
</head>
<body>
<center>
<h3 name="fileName">Ente Kadha - Madhavikkutty.pdf</h3>
<h2><a href="downlo">Click here to download the file</a></h2>
</center>
</body>
</html>
但是，当下载一个请求转到相同的控制器，从一个不同的jsp页面，这在下文中给出：
<%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %>
<%@taglib uri="http://www.springframework.org/tags/form" prefix="form" %>
<%@page contentType="text/html" pageEncoding="UTF-8"%>
<!DOCTYPE html>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html;charset=UTF8">
<title>Profile</title>
</head>
<body>
<table>
<th><h3>${profile.name}</h3></th>
<tr>
<td>Application Id :</td>
<td>${profile.a_id}</td>
</tr>
<tr>
<td>Name :</td>
<td>${profile.name}</td>
</tr>
<tr>
<td>Address :</td>
<td>${profile.address}</td>
</tr>
<tr>
<td>Email:</td>
<td>${profile.email}</td>
</tr>
<tr>
<td>Phone:</td>
<td>${profile.phone}</td>
</tr>
<tr>
<td>Vacancy id:</td>
<td></td>
</tr>
<tr>
<td>Date Applied :</td>
<td>${profile.dateApplied}</td>
</tr>
<tr>
<td>Resume : ${profile.resumePath}${profile.resumeDoc} </td>
<td><a href="downlo">Click here to download the file</a></td>
</tr>
</table>
</body>
</html>
但现在，这给了我一个错误：
HTTP Status 400 -
type Status report
message
description The request sent by the client was syntactically incorrect.
Apache Tomcat/8.0.3
我真的很困惑，为什么会出现这样的错误！ 我要求的方式是一样的，控制器方法是一样的，即使是要下载的文件在两种情况下都是一样的！
仍然出现错误。任何人都可以帮助我吗？ 请....
开放开发工具，在你的浏览器（Firefox/Chrome浏览器），并检查在每种情况下发送的请求。此外，将'spring-web'调试并调查日志，如下所述：https://stackoverflow.com/a/15432703/3635454 – pleft
GET http：// localhost：8084/IntelliLabsWeb/oneProfile/downlo 400（Bad Request） – ANJU
当我尝试从jsp页面“oneProfile”发送请求到我的项目中的任何控制器方法，它会给出错误400 – ANJU