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rest - Spring Boot 406“不可接受”

问题描述

我正在尝试使用版本为 2.0.5.RELEASE 的 Spring Boot 构建 RESTful API。这是我的控制器：

// Just for test
@RestController
public class LoginController {

    @RequestMapping(value = "/user/login",method = RequestMethod.POST,produces = MediaType.APPLICATION_JSON_VALUE)
    public ResponseEntity<?> login(@RequestParam(name = "username") String username,
                                   @RequestParam(name = "password") String password) {

        ResponseEntity<RESTResponse> response = null;

        if(username.equals("123") && password.equals("123")){
            // success
            response = new ResponseEntity<>(RESTResponse.generateResponse(
                    null, "successful", "Log in successfully."), HttpStatus.OK);
        } else {
            // failed
            response = new ResponseEntity<>(RESTResponse.generateResponse(
                    null, "failed", "Your username or password is incorrect."), HttpStatus.OK);
        }

        return response;
    }

}

这是 Spring MVC 配置类：

@Configuration
public class MyMvcConfig implements WebMvcConfigurer{

    /**
     * CORS configuration
     */
    @Override
    public void addCorsMappings(CorsRegistry registry) {
        registry.addMapping("/**")
                .allowedOrigins(ALL)
                .allowedMethods(ALL)
                .allowedHeaders(ALL)
                .allowCredentials(true);
    }


}

控制器应该响应 JSON 数据。我使用 Postman 来测试控制器。控制器可以接收请求参数并正常工作，但邮递员得到了一个奇怪的响应：

{
    "timestamp": "2018-09-16T05:55:14.860+0000",
    "status": 406,
    "error": "Not Acceptable",
    "message": "Could not find acceptable representation",
    "path": "/api/user/login"
}

有人可以帮忙吗？

标签： restspring-boot

解决方案

确保你有这些罐子并Accept: application/json在邮递员标题中使用 Header

<dependency>
    <groupId>com.fasterxml.jackson.core</groupId>
    <artifactId>jackson-core</artifactId>
    <version>2.4.1</version>
</dependency>
<dependency>
    <groupId>com.fasterxml.jackson.core</groupId>
    <artifactId>jackson-databind</artifactId>
    <version>2.4.1.1</version>
</dependency>

<dependency>
    <groupId>org.codehaus.jackson</groupId>
    <artifactId>jackson-core-asl</artifactId>
    <version>1.9.13</version>
</dependency>

<dependency>
    <groupId>org.codehaus.jackson</groupId>
    <artifactId>jackson-mapper-asl</artifactId>
    <version>1.9.13</version>
</dependency>

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