调用HTTP接口（okhttp）代码示例，JSon格式参数、返回值

最新推荐文章于 2025-03-12 09:31:20 发布

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最新推荐文章于 2025-03-12 09:31:20 发布

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分类专栏：通用Java 文章标签： HTTP接口 JSon

本文链接：https://blog.youkuaiyun.com/guosyu/article/details/107521064

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调用HTTP接口，参数、返回值均为JSon格式，仅供参考；

依赖Jar包：okio-1.17.5/okhttp-3.11.0/logging-interceptor-3.12.6（具体Jar包版本，请根据项目情况选择）；

package com.kingdee.eas.si.test;

import okhttp3.Request;
import okhttp3.Response;
import okhttp3.MediaType;
import okhttp3.RequestBody;
import okhttp3.OkHttpClient;
import okhttp3.ResponseBody;
import com.kingdee.eas.si.util.*;

public class ForTest {

	public static void main(String[] args) throws Exception {
		
		String url = "http://192.168.1.199:8080/Demo/getData";
		String params = Resource.get("TEST"); //JSon参数
		System.out.println("接口地址：" + url);
		System.out.println("接口参数：" + params);
		
		long start = System.currentTimeMillis();
		String result = post(url, params);
		long end = System.currentTimeMillis();
		System.out.println("调用耗时（秒）：" + (end - start) / 1000);
		System.out.println("返回报文：" + result);
		
	}
	
	/**
	 * 发送POST请求，调用HTTP接口
	 * @param params 接口参数
	 * @return JSon
	 * 
	 */
	public static String post(String url, String params) throws Exception {
		
		String result = "";
		OkHttpClient client = new OkHttpClient().newBuilder().build();
		MediaType mediaType = MediaType.parse("application/json");
		RequestBody body = RequestBody.create(mediaType, params);
		
		Request.Builder builder = new Request.Builder();
		builder.url(url);
		builder.method("POST", body);
		builder.addHeader("Content-Type", "application/json");
		Request request = builder.build();
		Response response = client.newCall(request).execute();
		ResponseBody responseBody = response.body();
		if (response.isSuccessful() && responseBody != null) {
			result = responseBody.string();
		} else {
			if(responseBody != null) result = responseBody.string();
		}
		
		return result;
	
	}

}