使用okhttp3执行post请求

最新推荐文章于 2025-10-12 17:06:52 发布

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本文介绍如何使用OkHttp库在Java中实现POST请求。通过示例代码展示了如何设置依赖、构建请求体并发送POST请求到指定URL。同时，演示了如何处理响应结果。

1.导入依赖

<dependency>
    <groupId>com.squareup.okhttp3</groupId>
    <artifactId>okhttp</artifactId>
    <version>3.14.0</version>
</dependency>

2.代码实现

package net.ruifeng.app.cloud.service.impl;

import com.google.common.collect.Maps;
import okhttp3.*;

import java.io.IOException;
import java.util.Map;

public class Demo {
    public static final MediaType JSON = MediaType.parse("application/x-www-form-urlencoded; charset=utf-8");
    public static void main(String[] args) {
        try {
            Map<String, Object> param = Maps.newHashMap();
            param.put("jcgl",1);
            param.put("putPrice",1);
            param.put("total",1);
            param.put("transactiontype",1);
            param.put("valuation",1);
            RequestBody loginBody =
                    RequestBody.create(JSON, com.alibaba.fastjson.JSON.toJSONString(param));
            Response response = httpPost("http://192.161.1.1:8888/order/saveData", loginBody);
            System.out.println(response);
        } catch (Exception e) {
            e.printStackTrace();
        }

    }

    public static Response httpPost(String url, RequestBody requestBody) throws IOException {
        OkHttpClient client = new OkHttpClient();
        Request request=new Request.Builder()
                .url(url)
                .post(requestBody)
                .addHeader("Content-Type", "application/x-www-form-urlencoded")
                .build();
        Response response = client
                .newCall(request)
                .execute();
        if (response.isSuccessful()) {
            return response;
        } else {
            throw new IOException("Unexpected code " + response);
        }
    }
}