spring RestTemplate 工程导入
spring 提供了RestTemplate的工具类对 httpclient,okhttp,Jdk UrlConnection 三中http 客户端封装。
RestTemplate 使用:
1 @RunWith(SpringRunner.class) 2 @SpringBootTest 3 public class DemoRestTemplateTests { 4 5 @Autowired 6 private RestTemplate restTemplate; 7 8 @Test 9 public void test(){ 10 String url = "http://localhost/user/8"; 11 //对json 反序列化 12 User user = restTemplate.getForObject(url, User.class); 13 System.out.println(user.toString()); 14 } 15 16 }
相应的pom.xml
1 <?xml version="1.0" encoding="UTF-8"?> 2 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" 3 xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd"> 4 <modelVersion>4.0.0</modelVersion> 5 <groupId>com.spring.cloud</groupId> 6 <artifactId>demo</artifactId> 7 <version>0.0.1-SNAPSHOT</version> 8 <name>RestTemplateDemo</name> 9 <description>Demo project for Spring Boot</description> 10 11 <parent> 12 <artifactId>spring-boot-starter-parent</artifactId> 13 <groupId>org.springframework.boot</groupId> 14 <version>2.3.5.RELEASE</version> 15 </parent> 16 17 <properties> 18 <java.version>1.8</java.version> 19 <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding> 20 <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding> 21 </properties> 22 23 <dependencies> 24 <dependency> 25 <groupId>org.springframework.boot</groupId> 26 <artifactId>spring-boot-starter</artifactId> 27 </dependency> 28 29 <dependency> 30 <groupId>org.springframework.boot</groupId> 31 <artifactId>spring-boot-starter-web</artifactId> 32 </dependency> 33 34 <dependency> 35 <groupId>org.springframework.boot</groupId> 36 <artifactId>spring-boot-starter-test</artifactId> 37 <!-- <scope>test</scope>--> 38 <!-- <exclusions>--> 39 <!-- <exclusion>--> 40 <!-- <groupId>org.junit.vintage</groupId>--> 41 <!-- <artifactId>junit-vintage-engine</artifactId>--> 42 <!-- </exclusion>--> 43 <!-- </exclusions>--> 44 </dependency> 45 46 <dependency> 47 <groupId>org.projectlombok</groupId> 48 <artifactId>lombok</artifactId> 49 </dependency> 50 </dependencies> 51 </project>