我正在使用 Spring boot v.2.2.7 来实现 post http 方法的休息服务。它在 Postman 中工作正常，但在使用浏览器时显示下一个错误:
There was an unexpected error (type=Method Not Allowed, status=405).
Request method 'POST' not supported
我的 Controller :
@Controller
public class SystemAdministratorController {
@Autowired
private StyleRepository styleRepository;
//Method get, post, put and delete for music styles
@GetMapping("/musicalstyle")
public String getStyle(Model model) {
List<Style> listStyles = styleRepository.findAll();
model.addAttribute("styles", listStyles);
return "musicalStyle";
}
@PostMapping("/musicalstyle")
public String addMusicalStyle(@Valid Style style) {
styleRepository.save(style);
return "template";
}
注意:Get 方法工作正常。
我的存储库:
@Repository
public interface StyleRepository extends JpaRepository<Style, Long>{
}
我的模型:
@Entity
@Table(name = "style", schema = "musicnet")
public class Style {
private String name;
private String description;
public Style() {
}
public Style(String name, String description) {
this.name = name;
this.description = description;
}
@Id
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
@Column(name = "description", nullable = false)
public String getDescription() {
return description;
}
public void setDescription(String description) {
this.description = description;
}
@Override
public String toString() {
return "SystemAdministrator [name=" + name + ", description=" + description + "]";
}
我的网络配置:
@Configuration
@EnableWebSecurity
public class SpringSecurityConfigurationBasicAuth extends WebSecurityConfigurerAdapter{
@Override
protected void configure(HttpSecurity http) throws Exception {
http.csrf().disable();
}
}
我的申请
@SpringBootApplication()
@EnableJpaAuditing
public class MusicnetApplication {
public static void main(String[] args) {
SpringApplication.run(MusicnetApplication.class, args);
}
}
addMusicalStyle.html(表单中调用post方法的地方):
<!doctype html>
<html lang="en" xmlns:th="http://www.thymeleaf.org">
<head>
</head>
<body>
<form th:action="@{/musicalstyle}" th:object="${style}" method="post">
<label for="name">Nombre</label>
<input type="text" th:field="*{name}" />
<label for="description">Descripción</label>
<input type="text" th:field="*{description}" />
<button type="submit" th:text="Añadir">Añadir</button>
</form>
</body>
</html>
问题似乎出在 thymeleaf 上。提交表单时 Spring 日志显示:
2020-05-18 20:07:45.793 DEBUG 9752 --- [nio-8182-exec-3] o.s.web.servlet.DispatcherServlet : POST "/addMusicalStyle.html", parameters={}
2020-05-18 20:07:45.810 DEBUG 9752 --- [nio-8182-exec-3] o.s.w.s.handler.SimpleUrlHandlerMapping : Mapped to ResourceHttpRequestHandler ["classpath:/META-INF/resources/", "classpath:/resources/", "classpath:/static/", "classpath:/public/", "/"]
2020-05-18 20:07:45.836 WARN 9752 --- [nio-8182-exec-3] .w.s.m.s.DefaultHandlerExceptionResolver : Resolved [org.springframework.web.HttpRequestMethodNotSupportedException: Request method 'POST' not supported]
2020-05-18 20:07:45.837 DEBUG 9752 --- [nio-8182-exec-3] o.s.web.servlet.DispatcherServlet : Completed 405 METHOD_NOT_ALLOWED
2020-05-18 20:07:45.846 DEBUG 9752 --- [nio-8182-exec-3] o.s.web.servlet.DispatcherServlet : "ERROR" dispatch for POST "/error", parameters={}
2020-05-18 20:07:45.854 DEBUG 9752 --- [nio-8182-exec-3] s.w.s.m.m.a.RequestMappingHandlerMapping : Mapped to org.springframework.boot.autoconfigure.web.servlet.error.BasicErrorController#errorHtml(HttpServletRequest, HttpServletResponse)
2020-05-18 20:07:46.408 DEBUG 9752 --- [nio-8182-exec-3] o.s.w.s.v.ContentNegotiatingViewResolver : Selected 'text/html' given [text/html, text/html;q=0.8]
2020-05-18 20:07:46.432 DEBUG 9752 --- [nio-8182-exec-3] o.s.web.servlet.DispatcherServlet : Exiting from "ERROR" dispatch, status 405
我们可以看到使用了:POST "/addMusicalStyle.html",parameters={} 当它应该是这样的时候: POST "/musicstyle",parameters={name="Jazz",description="From EEUU"} 所以 thymeleaf 没有完成他的工作。
我的pom.xml
<?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 https://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>2.2.7.RELEASE</version>
<relativePath/> <!-- lookup parent from repository -->
</parent>
<groupId>com.musicnet</groupId>
<artifactId>musicnet</artifactId>
<version>0.0.1-SNAPSHOT</version>
<name>musicnet</name>
<description>MusicNet is Spring project to develop the TFG</description>
<properties>
<java.version>1.8</java.version>
</properties>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-data-jpa</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web-services</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-thymeleaf</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-security</artifactId>
</dependency>
<dependency>
<groupId>org.postgresql</groupId>
<artifactId>postgresql</artifactId>
<scope>runtime</scope>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
<exclusions>
<exclusion>
<groupId>org.junit.vintage</groupId>
<artifactId>junit-vintage-engine</artifactId>
</exclusion>
</exclusions>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
</plugin>
</plugins>
</build>
</project>
这就像 th:action、th:object 和 th:field 没有采用正确的参数( postman 客户端的服务正常)。
我尝试过 Spring 2.3.0、2.2.7 和 2.1.14 版本，结果是一样的。
如何解决？
谢谢
最佳答案
我回复我:
为了让 Thymeleaf 处理这些文件，它们应该位于/src/main/java/resources/templates 下，所以出现了问题。
关于java - 为什么 Java Spring v.2.2.7 不支持请求方法 'POST'？，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/61876635/