RestTemplate简单使用 

RestTemplate来自import org.springframework.web.client.RestTemplate;
需要的maven依赖
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<dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
        </dependency>

　　

 

 

get无参调用

接口项目代码

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<?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>2.7.1</version>
        <relativePath/> <!-- lookup parent from repository -->
    </parent>
    <groupId>com</groupId>
    <artifactId>rest</artifactId>
    <version>0.0.1-SNAPSHOT</version>
    <name>rest</name>
    <description>Demo project for Spring Boot</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-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>

　　

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package com.rest;
 
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
 
@SpringBootApplication
public class RestApplication {
 
    public static void main(String[] args) {
        SpringApplication.run(RestApplication.class, args);
    }
 
}
 
/**
 *
 */
package com.rest.controller.front;
 
import java.util.HashMap;
import java.util.Map;
 
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RestController;
 
/**
 * @author yourheart
 * @update 2022年6月28日 下午11:08:02
 * @description:
 */
@RestController
public class TestController {
 
    @GetMapping("/testNoParamterGet")
    public Map<String, Object> testNoParamterGet() {
        Map<String, Object> resultMap = new HashMap<>();
        resultMap.put("name", "小白");
        resultMap.put("age", "10");
        resultMap.put("hobby", "羽毛球");
        resultMap.put("address", "东晋");
        return resultMap;
    }
 
}
 
 
server.port=8001
 
 
logging.level.com.rest=debug
logging.level.web=debug
spring.devtools.add-properties=false

　　调用方代码

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<?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>2.7.0</version>
        <relativePath/> <!-- lookup parent from repository -->
    </parent>
    <groupId>com.java</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>
    </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</artifactId>
        </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>

　　

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package com.java;
 
/**
 * @author yourheart
 * @Description
 * @create 2022-06-20 21:14
 */
import org.junit.jupiter.api.Test;
import org.springframework.boot.test.context.SpringBootTest;
import org.springframework.web.client.RestTemplate;
 
 
@SpringBootTest
public class DemoApplicationTests {
 
 
 
    @Test
    public void test(){
 
        RestTemplate restTemplate=new RestTemplate();
        String url="http://127.0.0.1:8001//testNoParamterGet";
        String forObject = restTemplate.getForObject(url, String.class);
        System.out.println(forObject);
 
 
    }
}

　　

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server.port=2000
 
logging.level.com.java=debug
logging.level.web=debug
spring.devtools.add-properties=false

　　get有参调用

 

 

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private final static Logger log = LoggerFactory.getLogger(TestController.class);
 
@GetMapping("/testParamterGet")
    public Map<String, Object> testParamterGet(String param) {
        log.info("【入参】param:{}", param);
        Map<String, Object> resultMap = new HashMap<>();
        resultMap.put("name", "小红");
        resultMap.put("age", "20");
        resultMap.put("hobby", "网球");
        resultMap.put("address", "唐朝");
        return resultMap;
    }

　　

 

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package com.java;
 
/**
 * @author yourheart
 * @Description
 * @create 2022-06-20 21:14
 */
import org.junit.jupiter.api.Test;
import org.springframework.boot.test.context.SpringBootTest;
import org.springframework.web.client.RestTemplate;
 
 
@SpringBootTest
public class DemoApplicationTests {
 
 
 
    @Test
    public void test(){
 
        RestTemplate restTemplate=new RestTemplate();
        String url="http://127.0.0.1:8001//testParamterGet?param={param}";
        String forObject = restTemplate.getForObject(url, String.class,"aaa");
        System.out.println(forObject);
 
 
    }
}

　　get请求多个参数

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@GetMapping("/testParamterMapGet/{id}/{name}")
    public Map<String, Object> testParamterMapGet(@PathVariable String id, @PathVariable String name) {
        log.info("【入参】id:{},name:{}", id, name);
        Map<String, Object> resultMap = new HashMap<>();
        resultMap.put("name", "小红");
        resultMap.put("age", "20");
        resultMap.put("hobby", "网球");
        resultMap.put("address", "唐朝");
        return resultMap;
    }

　　

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package com.java;
 
/**
 * @author yourheart
 * @Description
 * @create 2022-06-20 21:14
 */
import com.java.bean.TestBean;
import org.junit.jupiter.api.Test;
import org.springframework.boot.test.context.SpringBootTest;
import org.springframework.web.client.RestTemplate;
 
import java.util.HashMap;
import java.util.Map;
 
 
@SpringBootTest
public class DemoApplicationTests {
 
 
 
    @Test
    public void test(){
 
        RestTemplate restTemplate=new RestTemplate();
        String url="http://127.0.0.1:8001//testParamterMapGet/{id}/{name}";
        Map<String, String> params = new HashMap<String, String>();
        params.put("id", "1");
        params.put("name","admin");
        String forObject = restTemplate.getForObject(url, String.class,params);
        System.out.println(forObject);
 
 
    }
}

 

 

 

post请求多个参数

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@PostMapping("/testParamterBeanPost")
    public Map<String, Object> testParamterBeanPost(@RequestBody TestBean param) {
        log.info("【入参】param:{}", param);
        Map<String, Object> resultMap = new HashMap<>();
        resultMap.put("name", "小红");
        resultMap.put("age", "20");
        resultMap.put("hobby", "网球");
        resultMap.put("address", "唐朝");
        return resultMap;
    }

　　

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/**
 *
 */
package com.rest.bean;
 
/**
 * @author yourheart
 * @update 2022年6月28日 下午11:56:52
 * @description:
 */
public class TestBean {
 
    private String user;
 
    private String pwd;
 
    /**
     * @return the user
     */
    public String getUser() {
        return user;
    }
 
    /**
     * @param user the user to set
     */
    public void setUser(String user) {
        this.user = user;
    }
 
    /**
     * @return the pwd
     */
    public String getPwd() {
        return pwd;
    }
 
    /**
     * @param pwd the pwd to set
     */
    public void setPwd(String pwd) {
        this.pwd = pwd;
    }
 
    @Override
    public String toString() {
        return "TestBean [user=" + user + ", pwd=" + pwd + "]";
    }
 
}

　　

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package com.java;
 
/**
 * @author yourheart
 * @Description
 * @create 2022-06-20 21:14
 */
 
import com.java.bean.TestBean;
import org.junit.jupiter.api.Test;
import org.springframework.boot.test.context.SpringBootTest;
import org.springframework.web.client.RestTemplate;
 
import java.util.HashMap;
import java.util.Map;
 
 
@SpringBootTest
public class DemoApplicationTests {
 
 
    @Test
    public void test() {
 
        RestTemplate restTemplate = new RestTemplate();
        String url = "http://127.0.0.1:8001/testParamterBeanPost";
        TestBean testBean = new TestBean();
        testBean.setUser("admin");
        testBean.setPwd("123");
        String postForObject = restTemplate.postForObject(url, testBean, String.class);
        System.out.println(postForObject);
    }
}

　　

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/**
 *
 */
package com.java.bean;
 
/**
 * @author yourheart
 * @update 2022年6月28日 下午11:56:52
 * @description:
 */
public class TestBean {
 
    private String user;
 
    private String pwd;
 
    /**
     * @return the user
     */
    public String getUser() {
        return user;
    }
 
    /**
     * @param user the user to set
     */
    public void setUser(String user) {
        this.user = user;
    }
 
    /**
     * @return the pwd
     */
    public String getPwd() {
        return pwd;
    }
 
    /**
     * @param pwd the pwd to set
     */
    public void setPwd(String pwd) {
        this.pwd = pwd;
    }
 
    @Override
    public String toString() {
        return "TestBean [user=" + user + ", pwd=" + pwd + "]";
    }
 
}

　　

 

 

 

posted @   不忘初心2021  阅读(135)  评论(0)  编辑  收藏  举报
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