java - Spring中的POST方法不接受application/json

Question

在 Spring api 中，我在 RestController 中有一个用于 POST 请求的方法，但是，当 Postman 发出请求时，系统返回错误 415:

{
"timestamp": "2019-07-02T18:08:48.859+0000",
"status": 415,
"error": "Unsupported Media Type",
"message": "Content type 'application/json;charset=UTF-8' not supported",
"path": "/api/call"
}

RestController 类:

@RestController("/api/call")
public class CallController {

    private final MailService mailService;

    public CallController(MailService mailService) {
        super();
        this.mailService = mailService;
    }

    @PostMapping
    public ResponseEntity<Void> postCall(@Valid @RequestBody Email formEmail) throws URISyntaxException {
        mailService.sendMail();

        return ResponseEntity.noContent().build();
    }

}

电子邮件类别:

public class Email {

    private static String MAIL_TO = "mail@email.com";

    @Null
    private String mailTo;

    @NotNull
    @Size(min = 3)
    private String nameUserRequest;

    @NotNull
    @javax.validation.constraints.Email
    private String emailUserRequest;


    @NotNull
    private String text;

    public Email() {
        super();
    }

    public String getMailTo() {
        mailTo = MAIL_TO;
        return mailTo;
    }

    public void setMailTo(String mailTo) {
        this.mailTo = mailTo;
    }

    public String getNameUserRequest() {
        return nameUserRequest;
    }

    public void setNameUserRequest(String nameUserRequest) {
        this.nameUserRequest = nameUserRequest;
    }

    public String getEmailUserRequest() {
        return emailUserRequest;
    }

    public void setEmailUserRequest(String emailUserRequest) {
        this.emailUserRequest = emailUserRequest;
    }


    public String getText() {
        return text;
    }

    public void setText(String text) {
        this.text = text;
    }

    @Override
    public String toString() {
        return "Email [nameUserRequest=" + nameUserRequest + ", emailUserRequest=" + emailUserRequest + ", text=" + text
                + "]";
    }


}

postman 请求:

目的是Post方法只接收Email的Json，发送邮件后返回成功，但是返回错误415，我尝试了 @PostMapping(consumes ="application/json", Produces="application/json") 但它不起作用。系统还剩下什么来接受Json请求？

已编辑

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 http://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>2.1.6.RELEASE</version>
        <relativePath/> <!-- lookup parent from repository -->
    </parent>
    <groupId>com.company.mail.call</groupId>
    <artifactId>mail-call</artifactId>
    <version>0.0.1-SNAPSHOT</version>
    <packaging>war</packaging>
    <name>mail-call</name>
    <description>Mail call</description>

    <properties>
        <java.version>1.8</java.version>
    </properties>

    <dependencies>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
        </dependency>

        <dependency>
           <groupId>org.springframework.boot</groupId>
           <artifactId>spring-boot-starter-mail</artifactId>
        </dependency>   

        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-tomcat</artifactId>
            <scope>provided</scope>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-test</artifactId>
            <scope>test</scope>
        </dependency>
    </dependencies>

    <build>
        <plugins>
            <plugin>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-maven-plugin</artifactId>
            </plugin>
        </plugins>
    </build>

</project>

Answer 1

您应该在类顶部定义@RequestMapping("/api/call")以启用您的路由。 @RestController("/api/call") @RestController 中的值定义将由 Spring 管理的组件名称。