SpringBoot实现HTTP调用的7 种方式

import org.apache.http.client.config.RequestConfig;
import org.apache.http.client.methods.CloseableHttpResponse;
import org.apache.http.client.methods.HttpGet;
import org.apache.http.impl.client.CloseableHttpClient;
import org.apache.http.impl.client.HttpClients;

publicclassHttpClientUtil {

    publicstatic String get(String url)throws Exception {
        CloseableHttpClienthttpClient= HttpClients.createDefault();
        RequestConfigconfig= RequestConfig.custom()
                .setConnectTimeout(12000)
                .setConnectionRequestTimeout(12000)
                .setSocketTimeout(12000)
                .build();

        HttpGetrequest=newHttpGet(url);
        request.setConfig(config);

        try (CloseableHttpResponseresponse= httpClient.execute(request)) {
            // 处理响应
            return"Response received";
        } catch (Exception e) {
            thrownewRuntimeException("HTTP调用失败", e);
        }
    }
}

import okhttp3.OkHttpClient;
import okhttp3.Request;
import okhttp3.Response;

publicclassOkHttpUtil {

    privatestaticfinalOkHttpClientCLIENT=newOkHttpClient();

    publicstatic String get(String url)throws Exception {
        Requestrequest=newRequest.Builder()
                .url(url)
                .build();

        try (Responseresponse= CLIENT.newCall(request).execute()) {
            // 处理响应
            return response.body().string();
        }
    }
}

public class OkHttpUtilWrapper {

    public static String get(String url, Map<String, Object> queryParams) throws IOException {
        // 假设OkHttpUtil提供了这样的get方法
        return OkHttpUtil.get(url, queryParams);
    }
}

import jodd.http.HttpRequest;
import jodd.http.HttpResponse;

publicclassJoddHttpUtil {

    publicstatic String get(String url, Map<String, Object> queryParams)throws IOException {
        HttpRequestrequest= HttpRequest.get(url).query(queryParams);
        HttpResponseresponse= request.send();
        return response.bodyText();
    }
}

import cn.hutool.http.HttpRequest;
import cn.hutool.http.HttpResponse;
import cn.hutool.http.HttpUtil;

publicclassHutoolHttpUtil {

    publicstatic String get(String url, Map<String, Object> queryParams)throws IOException {
        HttpRequestrequest= HttpUtil.createGet(url).form(queryParams);
        HttpResponseresponse= request.execute();
        return response.body();
    }
}

import org.springframework.boot.web.client.RestTemplateBuilder;
import org.springframework.stereotype.Component;
import org.springframework.web.client.RestTemplate;
import org.springframework.http.ResponseEntity;

@Component
publicclassRestTemplateUtil {

    privatefinal RestTemplate restTemplate;

    publicRestTemplateUtil(RestTemplateBuilder builder) {
        this.restTemplate = builder.build();
    }

    public String get(String url, Map<String, Object> queryParams) {
        Stringuri= buildUri(url, queryParams);
        ResponseEntity<String> response = restTemplate.getForEntity(uri, String.class);
        return response.getBody();
    }

    private String buildUri(String url, Map<String, Object> queryParams) {
        // 构建URI的逻辑
        return url;
    }
}

# application.yml
forest:
  max-connections: 1000
  connect-timeout: 3000
  read-timeout: 3000

import com.dtflys.forest.annotation.Get;
import com.dtflys.forest.annotation.Post;
import com.dtflys.forest.annotation.Query;
import com.dtflys.forest.annotation.Header;
import com.dtflys.forest.annotation.JSONBody;
import com.dtflys.forest.springboot.annotation.ForestScan;
import org.springframework.stereotype.Component;

@ForestScan(basePackages = "com.example.client")
@Component
public interface TestClient {

    @Get("http://localhost:20001/test/queryById")
    String queryById(@Header Map<String, Object> headerMap, @Query Map<String, Object> params);

    @Post("http://localhost:20001/test/add")
    String add(@Header Map<String, Object> headerMap, @JSONBody UserVo userVo);
}