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[英]HTTP Status 405 - HTTP method POST is not supported by this URL java servlet
[英]Why it is shown HTTP Status 405 - HTTP method POST is not supported by this URL?
我在春季从事过演示登录应用程序的工作。 这是我的LoginController.java:
package com.pran.pal.controller;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.servlet.ModelAndView;
@Controller
public class LoginController extends HttpServlet{
@RequestMapping(value="/login" ,method=RequestMethod.GET)
public ModelAndView login(HttpServletRequest request, HttpServletResponse response) {
String userName=request.getParameter("userName");
String password=request.getParameter("password");
String message;
if(userName != null && !userName.equals("") && userName.equals("admin")
&& password != null && !password.equals("") && password.equals("123")){
message = "Welcome " +userName + ".";
return new ModelAndView("index", "message", message);
}
else{
message = "Wrong username or password.";
return new ModelAndView("index", "message", message);
}
}
我使用过Eclipse Neon,Tomcat v9。
这是我的pom.xml
<project xmlns="http://maven.apache.org/POM/4.0.0"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>com.pran.pal</groupId>
<artifactId>LoginSystemPAL</artifactId>
<packaging>war</packaging>
<version>0.0.1-SNAPSHOT</version>
<name>LoginSystemPAL Maven Webapp</name>
<url>http://maven.apache.org</url>
<dependencies>
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>3.8.1</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-web</artifactId>
<version>4.3.4.RELEASE</version>
</dependency>
</dependencies>
<build>
<finalName>LoginSystemPAL</finalName>
</build>
</project>
这是我的web.xml
<!DOCTYPE web-app PUBLIC
"-//Sun Microsystems, Inc.//DTD Web Application 2.3//EN"
"http://java.sun.com/dtd/web-app_2_3.dtd" >
<web-app>
<display-name>Archetype Created Web Application</display-name>
<servlet>
<servlet-name>LoginController</servlet-name>
<servlet-class>com.pran.pal.controller.LoginController</servlet-class>
<load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>LoginController</servlet-name>
<url-pattern>/login</url-pattern>
</servlet-mapping>
</web-app>
它显示输入的用户名和密码如下:
HTTP状态405-此URL不支持HTTP方法POST
类型状态报告
此URL不支持消息HTTP方法POST
说明所请求的资源不允许使用指定的HTTP方法。
我怎么解决这个问题?
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