Java httpClient上传文件demo (post)

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已于 2023-05-25 20:56:06 修改

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分类专栏： MultipartFile 文章标签： java

于 2022-08-25 17:38:36 首次发布

本文链接：https://blog.youkuaiyun.com/weixin_43652507/article/details/126529396

版权

本文通过Java HttpClient库演示如何实现文件POST方式上传，涵盖了必要的依赖引入和关键代码示例。

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依赖

<!--MultipartEntityBuilder依赖-->
<dependency>
	<groupId>org.apache.httpcomponents</groupId>
	<artifactId>httpmime</artifactId>
	<version>4.5</version>
</dependency>

HttpClient.java

import com.alibaba.fastjson.JSONObject;
import com.ruoyi.wx.ruoyiwx.config.TokenContext;
import org.apache.http.HttpEntity;
import org.apache.http.HttpResponse;
import org.apache.http.HttpStatus;
import org.apache.http.client.ClientProtocolException;
import org.apache.http.client.methods.HttpPost;
import org.apache.http.entity.ContentType;
import org.apache.http.entity.mime.MultipartEntityBuilder;
import org.apache.http.impl.client.CloseableHttpClient;
import org.apache.http.impl.client.HttpClientBuilder;
import org.apache.http.util.EntityUtils;
import org.springframework.web.multipart.MultipartFile;

import java.io.IOException;
import java.nio.charset.Charset;
import java.util.HashMap;
i