Spring Boot 405 POST方法不受支持？

  • Z时代
  • 2024-01-10
  • 分类：问答

Spring Boot" title="Spring Boot">Spring Boot MVC如何不支持POST方法？我正在尝试实现一个简单的post方法，该方法接受实体列表：这是我的代码

@RestController(value="/backoffice/tags")
public class TagsController {
    @RequestMapping(value = "/add", method = RequestMethod.POST)
        public void add(@RequestBody List<Tag> keywords) {
            tagsService.add(keywords);
        }
}

像这样点击此网址：

http://localhost:8090/backoffice/tags/add

请求正文：

[{"tagName":"qweqwe"},{"tagName":"zxczxczx"}]

我收到：

{
    "timestamp": 1441800482010,
    "status": 405,
    "error": "Method Not Allowed",
    "exception": "org.springframework.web.HttpRequestMethodNotSupportedException",
    "message": "Request method 'POST' not supported",
    "path": "/backoffice/tags/add"
}

：

调试Spring Web请求处理程序

     public void handleRequest(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
            this.checkRequest(request);
 protected final void checkRequest(HttpServletRequest request) throws ServletException {
        String method = request.getMethod();
        if(this.supportedMethods != null && !this.supportedMethods.contains(method)) {
            throw new HttpRequestMethodNotSupportedException(method, StringUtils.toStringArray(this.supportedMethods));
        } else if(this.requireSession && request.getSession(false) == null) {
            throw new HttpSessionRequiredException("Pre-existing session required but none found");
        }
    }

仅有的两种方法supportedMethods是{GET,HEAD}

回答：

RestController注释定义中存在错误。根据文档，它是：

公共@interface RestController {

/ 该值可能表明建议使用逻辑组件名称，如果自动检测到组件，则将其转换为Spring bean。 @返回建议的组件名称（如果有的话）

@自4.0.1开始* /字符串value（）默认为“”；

}

这意味着您输入的值（“ / backoffice / tags”）是控制器的名称，而不是其可用路径。

添加@RequestMapping("/backoffice/tags")控制器的类，并从@RestController注释中删除值。

完全正常工作的示例，根据注释它不起作用-请尝试使用此代码-并从IDE本地运行。

buildscript {
    ext {
        springBootVersion = '1.2.5.RELEASE'
    }
    repositories {
        mavenCentral()
    }
    dependencies {
        classpath("org.springframework.boot:spring-boot-gradle-plugin:${springBootVersion}") 
        classpath("io.spring.gradle:dependency-management-plugin:0.5.2.RELEASE")
    }
}
apply plugin: 'java'
apply plugin: 'eclipse'
apply plugin: 'idea'
apply plugin: 'spring-boot' 
apply plugin: 'io.spring.dependency-management'
jar {
    baseName = 'demo'
    version = '0.0.1-SNAPSHOT'
}
sourceCompatibility = 1.8
targetCompatibility = 1.8
repositories {
    mavenCentral()
}
dependencies {
    compile("org.springframework.boot:spring-boot-starter-web")
    testCompile("org.springframework.boot:spring-boot-starter-test") 
}
eclipse {
    classpath {
         containers.remove('org.eclipse.jdt.launching.JRE_CONTAINER')
         containers 'org.eclipse.jdt.launching.JRE_CONTAINER/org.eclipse.jdt.internal.debug.ui.launcher.StandardVMType/JavaSE-1.8'
    }
}
task wrapper(type: Wrapper) {
    gradleVersion = '2.3'
}

package demo;
import com.fasterxml.jackson.annotation.JsonCreator;
import com.fasterxml.jackson.annotation.JsonProperty;
public class Tag {
    private final String tagName;
    @JsonCreator
    public Tag(@JsonProperty("tagName") String tagName) {
        this.tagName = tagName;
    }
    public String getTagName() {
        return tagName;
    }
    @Override
    public String toString() {
        final StringBuilder sb = new StringBuilder("Tag{");
        sb.append("tagName='").append(tagName).append('\'');
        sb.append('}');
        return sb.toString();
    }
}

package demo;
import org.springframework.web.bind.annotation.RequestBody;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.bind.annotation.RestController;
import java.util.List;
@RestController
@RequestMapping("/backoffice/tags")
public class SampleController {
    @RequestMapping(value = "/add", method = RequestMethod.POST)
    public void add(@RequestBody List<Tag> tags) {
        System.out.println(tags);
    }
}

package demo;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
@SpringBootApplication
public class DemoApplication {
    public static void main(String[] args) {
        SpringApplication.run(DemoApplication.class, args);
    }
}

以上是 Spring Boot 405 POST方法不受支持？ 的全部内容， 来源链接： utcz.com/qa/432785.html

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