springBoot: How to use RestTemplate to make an HttpRequest

1、create a domain class to contain the data that you need.
它使用Jackson JSON处理库中的@JsonIgnoreProperties进行注释，表明任何未绑定在此类型中的属性都应该被忽略

package hello;import com.fasterxml.jackson.annotation.JsonIgnoreProperties;@JsonIgnoreProperties(ignoreUnknown = true)public class Quote {    private String type;    private Value value;    public Quote() {    }    public String getType() {        return type;    }    public void setType(String type) {        this.type = type;    }    public Value getValue() {        return value;    }    public void setValue(Value value) {        this.value = value;    }    @Override    public String toString() {        return "Quote{" +                "type='" + type + '\'' +                ", value=" + value +                '}';    }}

2、An additional class is needed to embed the inner quotation itself.

package hello;import com.fasterxml.jackson.annotation.JsonIgnoreProperties;@JsonIgnoreProperties(ignoreUnknown = true)public class Value {    private Long id;    private String quote;    public Value() {    }    public Long getId() {        return this.id;    }    public String getQuote() {        return this.quote;    }    public void setId(Long id) {        this.id = id;    }    public void setQuote(String quote) {        this.quote = quote;    }    @Override    public String toString() {        return "Value{" +                "id=" + id +                ", quote='" + quote + '\'' +                '}';    }}

3、Make the application executable：

package hello;import org.slf4j.Logger;import org.slf4j.LoggerFactory;import org.springframework.boot.SpringApplication;import org.springframework.boot.autoconfigure.SpringBootApplication;import org.springframework.web.client.RestTemplate;public class Application {    private static final Logger log = LoggerFactory.getLogger(Application.class);    public static void main(String args[]) {        // you can use RestTemplate to make an http request like post/get/delete/        RestTemplate restTemplate = new RestTemplate();        Quote quote = restTemplate.getForObject("http://gturnquist-quoters.cfapps.io/api/random", Quote.class);        log.info(quote.toString());    }}