无需使用 spring 靴即可创建 spring 休息服务

2 回答

• 6

  您不需要Spring Boot来创建休息控制器 .

  请按照 spring 框架文档了解如何设置MVC https://docs.spring.io/spring/docs/current/spring-framework-reference/web.html#spring-web

  MVC设置（ DispatcherServlet ）取决于您的spring版本，您可以使用xml，也可以通过编程方式进行设置：https://docs.spring.io/spring/docs/current/spring-framework-reference/web.html#mvc-servlet

  设置完成后，您可以向应用程序添加休息控制器 . 请注意，休止控制器（ @RestController 注释）是一个构造型注释，它结合了 @ResponseBody 和 @Controller ，换句话说，Controller返回响应体中的对象而不是返回视图 .

  这是一个完美的例子，解释了我上面所说的内容：http://www.programming-free.com/2014/01/spring-mvc-40-restful-web-services.html

  回复于 2024-05-01T15:09:23+08:00
• 44

  这是另一个例子：

  目录布局：

  .
  ├── ./pom.xml
  └── ./src
      └── ./src/main
          ├── ./src/main/java
          │   └── ./src/main/java/biz
          │       └── ./src/main/java/biz/tugay
          │           └── ./src/main/java/biz/tugay/restfulspring
          │               └── ./src/main/java/biz/tugay/restfulspring/config
          │                   ├── ./src/main/java/biz/tugay/restfulspring/config/RestfulHello.java
          │                   └── ./src/main/java/biz/tugay/restfulspring/config/WebAppInitalizer.java
          └── ./src/main/webapp
              └── ./src/main/webapp/WEB-INF
                  └── ./src/main/webapp/WEB-INF/web.xml
  

  pom.xml

  <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/maven-v4_0_0.xsd">
  
      <modelVersion>4.0.0</modelVersion>
      <groupId>biz.tugay</groupId>
      <artifactId>restfulSpring</artifactId>
  
      <packaging>war</packaging>
      <version>1.0-SNAPSHOT</version>
      <name>restfulSpring Maven Webapp</name>
  
      <url>http://maven.apache.org</url>
  
      <dependencies>
          <dependency>
              <groupId>javax.servlet</groupId>
              <artifactId>javax.servlet-api</artifactId>
              <version>3.0.1</version>
              <scope>provided</scope>
          </dependency>
  
          <dependency>
              <groupId>org.springframework</groupId>
              <artifactId>spring-core</artifactId>
              <version>4.3.16.RELEASE</version>
          </dependency>
          <dependency>
              <groupId>org.springframework</groupId>
              <artifactId>spring-context</artifactId>
              <version>4.3.16.RELEASE</version>
          </dependency>
          <dependency>
              <groupId>org.springframework</groupId>
              <artifactId>spring-web</artifactId>
              <version>4.3.16.RELEASE</version>
          </dependency>
          <dependency>
              <groupId>org.springframework</groupId>
              <artifactId>spring-webmvc</artifactId>
              <version>4.3.16.RELEASE</version>
          </dependency>
      </dependencies>
  
      <build>
          <finalName>restfulSpring</finalName>
          <plugins>
              <plugin>
                  <groupId>org.apache.maven.plugins</groupId>
                  <artifactId>maven-compiler-plugin</artifactId>
                  <version>3.1</version>
                  <configuration>
                      <source>1.7</source>
                      <target>1.7</target>
                  </configuration>
              </plugin>
              <plugin>
                  <groupId>org.eclipse.jetty</groupId>
                  <artifactId>jetty-maven-plugin</artifactId>
                  <version>9.2.1.v20140609</version>
              </plugin>
          </plugins>
      </build>
  
  </project>
  

  web.xml

  <?xml version="1.0" encoding="UTF-8"?>
  <web-app xmlns="http://java.sun.com/xml/ns/javaee"
           xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
           xsi:schemaLocation="http://java.sun.com/xml/ns/javaee
                               http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd"
           version="3.0">
  </web-app>
  

  WebAppInitalizer.java

  package biz.tugay.restfulspring.config;
  
  import org.springframework.context.annotation.ComponentScan;
  import org.springframework.context.annotation.Configuration;
  import org.springframework.web.servlet.config.annotation.EnableWebMvc;
  import org.springframework.web.servlet.support.AbstractAnnotationConfigDispatcherServletInitializer;
  
  @Configuration
  @EnableWebMvc
  @ComponentScan("biz.tugay.restfulspring")
  public class WebAppInitalizer extends AbstractAnnotationConfigDispatcherServletInitializer {
  
      @Override
      protected String[] getServletMappings() {
          return new String[]{"/*"};
      }
  
      @Override
      protected Class<?>[] getRootConfigClasses() {
          return new Class<?>[]{WebAppInitalizer.class};
      }
  
      @Override
      protected Class<?>[] getServletConfigClasses() {
          return new Class[0];
      }
  }
  

  RestfulHello.java

  package biz.tugay.restfulspring.config;
  
  import org.springframework.http.HttpHeaders;
  import org.springframework.http.HttpStatus;
  import org.springframework.http.MediaType;
  import org.springframework.http.ResponseEntity;
  import org.springframework.web.bind.annotation.RequestMapping;
  import org.springframework.web.bind.annotation.RestController;
  
  @RestController(value = "/")
  public class RestfulHello {
  
      @RequestMapping(value = "hello")
      public ResponseEntity<String> sayHello() {
          final HttpHeaders httpHeaders= new HttpHeaders();
          httpHeaders.setContentType(MediaType.APPLICATION_JSON);
          return new ResponseEntity<String>("{\"msg\": \"Hello World\"}", httpHeaders, HttpStatus.OK);
      }
  }
  

  构建并运行：

  mvn clean install
  mvn jetty:start
  

  测试：

  > GET /hello HTTP/1.1
  > Host: localhost:8080
  > User-Agent: insomnia/5.15.0
  > Accept: */*
  < HTTP/1.1 200 OK
  < Date: Fri, 27 Apr 2018 00:06:07 GMT
  < Content-Type: application/json
  < Content-Length: 22
  < Server: Jetty(9.2.1.v20140609)
  

  收到的内容：

  {
      "msg": "Hello World"
  }
  

  可以从here下载 .

  回复于 2024-05-01T15:09:23+08:00