小编典典

postman使用REST Api时出现意外的“ S”

spring-boot

我在SpringBootApplication中编写了非常基本的REST服务。当我尝试点击api时,我得到的响应就像Unexpected 'S'

这是我的api

@RestController
    @RequestMapping(value="/rally")
    public class CreateProjectApi {

        @RequestMapping(value = "/createProject", 
                produces = { "application/json" }, 
                consumes = { "application/json" }, 
                method = RequestMethod.GET)
        public ResponseEntity<String> createProj() {
            String s = "Success...";
            return new ResponseEntity<String>(s, HttpStatus.OK);
        }

    }

这是我的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>

    <groupId>com.altimetrik.rally</groupId>
    <artifactId>RallyRestApi</artifactId>
    <version>0.0.1-SNAPSHOT</version>
    <packaging>jar</packaging>

    <name>RallyRestApi</name>
    <description>Demo project for Spring Boot</description>

    <parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>1.5.4.RELEASE</version>
        <relativePath /> <!-- lookup parent from repository -->
    </parent>

    <properties>
        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
        <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
        <java.version>1.8</java.version>
    </properties>

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

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

        <dependency>
            <!-- Setup Spring MVC & REST, use Embedded Tomcat -->
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
        </dependency>

        <dependency>
            <groupId>com.rallydev.rest</groupId>
            <artifactId>rally-rest-api</artifactId>
            <version>2.2.1</version>
        </dependency>
</dependencies>

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

我正在通过带有content-type:application/jsonin header的邮递员访问api 。但是我得到了意外的“
S”作为回应。我已经跟踪了此链接中意想不到的“”,以响应稳定的服务,但是我没有从中得到任何解决方案。有人可以帮我吗?


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2020-05-30

共1个答案

小编典典

正如user7790438和nbrooks的注释中所述,问题是Success...即使您告诉它加载JSON(通过提供Content- Type: application/json标头),您的响应也将是纯文本()。

要返回JSON,您应该返回某种对象,例如,您可以创建一个ProjectStatus这样的类:

public class ProjectStatus {
    private String status;

    public ProjectStatus(String status) {
        this.status = status;
    }

    public String getStatus() {
        return status;
    }
}

现在,在您的REST控制器中,您应该返回ResponseEntity<ProjectStatus>,如下所示:

return new ResponseEntity<ProjectStatus>(new ProjectStatus("Success..."), HttpStatus.OK);

使用Postman时,这将导致以下JSON:

{"status": "Success..."}

您几乎可以返回任何想要的对象。一个示例是在响应中返回创建的项目。


另外,如果您不需要JSON,则可以提供Content-Type: text/plain标头。

2020-05-30