Java基础-http post带有文件、参数的请求

最新推荐文章于 2025-06-18 10:31:06 发布

原创最新推荐文章于 2025-06-18 10:31:06 发布 · 7.2k 阅读

8 ·

CC 4.0 BY-SA版权

文章标签：

#httppost #文件传输

编程语言专栏收录该内容

49 篇文章

订阅专栏

本文介绍如何使用Java的Apache HttpClient库进行HTTP Post请求，包括文件上传和参数传递。示例代码展示了如何构建MultipartEntity，设置请求头，以及处理响应。

摘要生成于 C知道，由 DeepSeek-R1 满血版支持，前往体验 >

pom.xml:

<dependency>
    <groupId>org.apache.httpcomponents</groupId>
    <artifactId>httpclient</artifactId>
    <version>4.3.6</version>
</dependency>
<dependency>
    <groupId>org.apache.httpcomponents</groupId>
    <artifactId>httpmime</artifactId>
    <version>4.5</version>
</dependency>
<dependency>
    <groupId>org.apache.httpcomponents</groupId>
    <artifactId>httpcore</artifactId>
    <version>4.4.1</version>
</dependency>

发送端:

import java.io.BufferedReader;
import java.io.File;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.net.URLDecoder;
import java.nio.charset.Charset;
import org.apache.http.HttpEntity;
import org.apache.http.HttpResponse;
import org.apache.http.client.ClientProtocolException;
import org.apache.http.client.HttpClient;
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.HttpClientBuilder;

/**
 * <dependency> 
	 * <groupId>org.apache.httpcomponents</groupId> 
	 * <artifactId>httpclient</artifactId> 
	 * <version>4.3.6</version> 
 * </dependency> 
 * <dependency> 
	 * <groupId>org.apache.httpcomponents</groupId> 
	 * <artifactId>httpmime</artifactId> 
	 * <version>4.5</version> 
 * </dependency> 
 * <dependency> 
	 * <groupId>org.apache.httpcomponents</groupId> 
	 * <artifactId>httpcore</artifactId> 
	 * <version>4.4.1</version> 
 * </dependency>
 */
public class PostTest {
	public static void main(String[] args) throws ClientProtocolException, IOException {
		HttpClient httpClient = HttpClientBuilder.create().build();
		HttpPost httpPost = new HttpPost("http://10.48.47.131:9091/toolCenter/attach");// 请求地址
		MultipartEntityBuilder meb = MultipartEntityBuilder.create();
		ContentType strContent = ContentType.create("application/zip", Charset.forName("UTF-8"));
		meb.addBinaryBody("uploadfile", new File("D://文件.zip"));// 文件路径
		meb.addTextBody("fileName", "文件.zip", strContent);// 文件名
		meb.addTextBody("sendMailName", "主标题", strContent);
		meb.addTextBody("mailSubject", "子标题", strContent);
		meb.addTextBody("receiveMail", "anyf@kunyitech.com", strContent);//多个以;分割
		meb.addTextBody("mailContent", "邮件内容", strContent);
		HttpEntity httpEntity = meb.build();
		httpPost.setEntity(httpEntity);
		try {
			StringBuilder sb = new StringBuilder();
			String line;
			HttpResponse httpResponse = httpClient.execute(httpPost);
			InputStream inputStream = httpResponse.getEntity().getContent();
			BufferedReader br = new BufferedReader(new InputStreamReader(inputStream,"UTF-8"));
			while ((line = br.readLine()) != null) {
				sb.append(line);
			}
			String rspMsg = URLDecoder.decode(sb.toString(),"UTF-8");
			System.err.println(rspMsg); // {"resp_desc":"SUCCESS","resp_code":"0000"}
		} catch (Exception e) {
			e.printStackTrace();
		}
	}
}

接收端:

@RequestMapping(value = "/emailattach", produces = "application/json; charset=utf-8")
@ResponseBody
public String email(
	@RequestParam("uploadfile")MultipartFile uploadfile,
	@RequestParam("param1")String param1,
	@RequestParam("param2")String param2
) {
	log.info("receive_param1-{},param2:{}",param1,param2);
	try {
		String filePath = "/app/" + filename;
		File file = new File(filePath);
		uploadfile.transferTo(file );
	} catch (Exception e) {
		log.error(e.getMessage(), e);
	}
	return "";
}