java Spring Boot - 不支持请求方法“POST”（不允许方法）
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Spring Boot - Request method 'POST' not supported (Method not allowed)
提问by KnechtRootrecht
As I followed this tutorial: https://spring.io/guides/gs/handling-form-submission/after a while I came to a dead end. I tried to figure out what the problem is for some hours now. I hope you can help me.
当我遵循本教程：https: //spring.io/guides/gs/handling-form-submission/一段时间后，我走到了死胡同。几个小时以来，我一直试图找出问题所在。我希望你能帮助我。
When I submit my form, I get this error-message:
当我提交表单时，我收到此错误消息：
There was an unexpected error (type=Method Not Allowed, status=405).
Request method 'POST' not supported
My App (App.java):
我的应用程序（App.java）：
package de.poc.logging.main;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
@SpringBootApplication
public class App {
public static void main(String[] args) {
SpringApplication.run(App.class, args);
}
}
My Controller (InformationController.java):
我的控制器（InformationController.java）：
package de.poc.logging.main;
import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.web.bind.annotation.ModelAttribute;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
@Controller
@RequestMapping(value = "/info")
public class InformationController {
@RequestMapping(method = RequestMethod.GET, produces = "text/html")
public String infoForm(Model model) {
model.addAttribute("information", new Information());
return "infoForm.html";
}
@RequestMapping(method = RequestMethod.POST, produces = "text/html")
public String infoSubmit(@ModelAttribute Information information) {
return "infoResult.html";
}
}
I created an additional class for security (WebSecurityConf.java):
我创建了一个额外的安全类（WebSecurityConf.java）：
package de.poc.logging.main.config;
import org.springframework.context.annotation.Configuration;
import org.springframework.security.config.annotation.web.builders.HttpSecurity;
import org.springframework.security.config.annotation.web.configuration.EnableWebSecurity;
import org.springframework.security.config.annotation.web.configuration.WebSecurityConfigurerAdapter;
@Configuration
@EnableWebSecurity
public class WebSecurityConfig extends WebSecurityConfigurerAdapter {
@Override
protected void configure(HttpSecurity http) throws Exception {
http.headers()
.frameOptions().sameOrigin()
.httpStrictTransportSecurity().disable();
http.csrf().disable();
}
}
And I have following two HTML-Files:
我有以下两个 HTML 文件：
infoForm.html:
infoForm.html：
<!DOCTYPE HTML>
<html xmlns:th="http://www.thymeleaf.org">
<head>
<title>Getting Started: Handling Form Submission</title>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8"/>
</head>
<body>
<h1>Form</h1>
<form action="#" th:action="@{/info}" th:object="${information}" method="post">
<p>Id: <input type="text" th:field="*{id}"/></p>
<p>Message: <input type="text" th:field="*{content}"/></p>
<p><input type="submit" value="Submit"/>
<input type="reset" value="Reset"/></p>
<!--<input type="hidden" th:name="${_csrf.parameterName}" th:value="${_csrf.token}"/>-->
</form>
</body>
</html>
infoResult.html:
信息结果.html：
<!DOCTYPE HTML>
<html xmlns:th="http://www.thymeleaf.org">
<head>
<title>Getting Started: Handling Form Submission</title>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8"/>
</head>
<body>
<h1>Result</h1>
<p th:text="'id: ' + ${information.id}"/>
<p th:text="'content: ' + ${information.content}"/>
<a href="/info">Submit another message</a>
</body>
</html>
Edit (additional information): my Information.java:
编辑（附加信息）：我的 Information.java：
package de.poc.logging.main;
public class Information {
private long id;
private String content;
public long getId() {
return id;
}
public String getContent() {
return content;
}
public void setId(long id) {
this.id = id;
}
public void setContent(String content) {
this.content = content;
}
}
my pom-dependencies:
我的 pom 依赖项：
<dependencies>
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
<version>1.5.2.RELEASE</version>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
<version>1.5.2.RELEASE</version>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-security</artifactId>
<version>1.5.2.RELEASE</version>
</dependency>
</dependencies>
I'm using Java 1.8u121 (jdk).
我正在使用 Java 1.8u121 (jdk)。
Edit2: I tried 3 different versions of spring boot now. Also I downloaded the project from here: https://github.com/spring-guides/gs-handling-form-submissionand added spring boot via pom.xml. The downloaded project does not work for me.
Edit2：我现在尝试了 3 个不同版本的 Spring Boot。我也从这里下载了项目：https: //github.com/spring-guides/gs-handling-form-submission并通过 pom.xml 添加了 spring boot。下载的项目对我不起作用。
I'm getting really frustrated.
我真的很沮丧。
采纳答案by KnechtRootrecht
I found the problem. My pom.xml was wrong. The right one looks like this:
我发现了问题。我的 pom.xml 是错误的。正确的看起来像这样：
<?xml version="1.0" encoding="UTF-8"?>
<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/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>org.springframework</groupId>
<artifactId>gs-handling-form-submission</artifactId>
<version>0.1.0</version>
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>1.5.2.RELEASE</version>
</parent>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-thymeleaf</artifactId>
</dependency>
</dependencies>
<properties>
<java.version>1.8</java.version>
</properties>
<build>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
</plugin>
</plugins>
</build>
<repositories>
<repository>
<id>spring-releases</id>
<url>https://repo.spring.io/libs-release</url>
</repository>
</repositories>
<pluginRepositories>
<pluginRepository>
<id>spring-releases</id>
<url>https://repo.spring.io/libs-release</url>
</pluginRepository>
</pluginRepositories>
回答by Sunil Kumar
I copied your exact same classes except the web security class and tried to run. The post method is working for me. The only change I made was returning file names without the .htmlextension.
我复制了除网络安全类之外的完全相同的类并尝试运行。post方法对我有用。我所做的唯一更改是返回没有.html扩展名的文件名。
My controller class looks like this
我的控制器类看起来像这样
import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.web.bind.annotation.ModelAttribute;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import com.example.models.Information;
@Controller
@RequestMapping(value = "/info")
public class InformationController {
@RequestMapping(method = RequestMethod.GET, produces = "text/html")
public String infoForm(Model model) {
model.addAttribute("information", new Information());
return "infoForm";
}
@RequestMapping(method = RequestMethod.POST, produces = "text/html")
public String infoSubmit(@ModelAttribute Information information) {
return "infoResult";
}
}
回答by Prasad Paravatha
Did you try with @RequestParam instead of @ModelAttribute?
您是否尝试过使用 @RequestParam 而不是 @ModelAttribute？
Something like this..
像这样的东西..
@RequestMapping(method = RequestMethod.POST, produces = "text/html")
public String infoSubmit(@RequestParam("info") Information information) {
return "infoResult.html";
}
