我尝试使用 GraphQL 和 MongoeDB 创建一个 Spring Boot REST 应用程序(我从那篇文章 https://medium.com/oril/spring-boot-graphql-mongodb-8733002b728a 开始)。应用程序启动,但当我尝试将某些内容发布到端点时出现 404 错误。
我还了解到 2.2.0 不再支持 @PostConstruct
(这是我稍后会尝试解决的另一个问题,我尝试在启动期间预加载数据库)。
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>2.2.0.RELEASE</version>
<relativePath/> <!-- lookup parent from repository -->
</parent>
<groupId>com.tsoai-api</groupId>
<artifactId>demo</artifactId>
<version>0.0.1-SNAPSHOT</version>
<name>demo</name>
<description>Demo project for Spring Boot</description>
<properties>
<java.version>1.8</java.version>
<lombok.version>1.18.10</lombok.version>
<commons-io.version>2.5</commons-io.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-data-mongodb</artifactId>
</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>
<dependency>
<groupId>org.projectlombok</groupId>
<artifactId>lombok</artifactId>
<version>${lombok.version}</version>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>commons-io</groupId>
<artifactId>commons-io</artifactId>
<version>${commons-io.version}</version>
</dependency>
<dependency>
<groupId>com.graphql-java</groupId>
<artifactId>graphql-spring-boot-starter</artifactId>
<version>3.6.0</version>
</dependency>
<dependency>
<groupId>com.graphql-java</groupId>
<artifactId>graphql-java-tools</artifactId>
<version>3.2.0</version>
</dependency>
<dependency>
<groupId>com.graphql-java</groupId>
<artifactId>graphiql-spring-boot-starter</artifactId>
<version>3.6.0</version>
</dependency>
<dependency>
<groupId>javax.annotation</groupId>
<artifactId>javax.annotation-api</artifactId>
<version>1.3.2</version>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
</plugin>
</plugins>
</build>
</project>
我的主应用程序文件如下所示(没什么特别的!):
@SpringBootApplication
public class DemoApplication {
public static void main(String[] args) {
SpringApplication.run(DemoApplication.class, args);
}
}
MainController.java
@RestController
@RequestMapping(path = "/query")
public class MainController {
private GraphQL graphQL;
private GraphQlUtility graphQlUtility;
@Autowired
MainController(GraphQlUtility graphQlUtility) throws IOException {
this.graphQlUtility = graphQlUtility;
graphQL = graphQlUtility.createGraphQlObject();
}
@PostMapping(path= "/")
public ResponseEntity query(@RequestBody String query){
ExecutionResult result = graphQL.execute(query);
System.out.println("errors: "+result.getErrors());
return ResponseEntity.ok(result.getData());
}
}
当我在 http://localhost:8080/query
上发帖时,我收到此错误:
{
"timestamp": "2019-10-19T16:10:19.136+0000",
"status": 404,
"error": "Not Found",
"message": "No message available",
"path": "/query"
}
最佳答案
它仅匹配 /query/
,但不匹配 /query
。如果您想同时匹配 /query
和 /query/
,您只需保留 @PostMapping
的 path
即可在查询方法中作为默认值。
@RestController
@RequestMapping(path = "/query")
public class MainController {
@PostMapping
public ResponseEntity query(@RequestBody String query){
}
}
关于java - 在 Spring Boot 2.2.0 应用程序中点击 REST 端点时出现问题,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/58466007/