脚本宝典收集整理的这篇文章主要介绍了将文件转换为文件流进行上传（例：通过HDMI进行传输），脚本宝典觉得挺不错的，现在分享给大家，也给大家做个参考。
package com.boottest.app;
import org.apache.commons.codec.Charsets;
import org.apache.http.HttpEntity;
import org.apache.http.HttpResponse;
import org.apache.http.NameValuePair;
import org.apache.http.client.methods.HttpPost;
import org.apache.http.entity.ContentType;
import org.apache.http.entity.mime.HttpMultipartMode;
import org.apache.http.entity.mime.MultipartEntity;
import org.apache.http.entity.mime.MultipartEntityBuilder;
import org.apache.http.entity.mime.content.FileBody;
import org.apache.http.impl.client.CloseableHttpClient;
import org.apache.http.impl.client.DefaultHttpClient;
import org.apache.http.impl.client.HttpClients;
import org.apache.http.message.BasicNameValuePair;
import org.apache.http.util.EntityUtils;
import java.io.*;
import java.nio.charset.Charset;
import java.util.ArrayList;
import java.util.List;
public class FileTest {
public static void main(String[] args) throws Exception {
String url ="http://localhost:8200/sys/uploadfile/uploadFile";
InputStream inputStream=new FileInputStream("C:\Users\Administrator\Desktop\work_order1.txt");;
List<NameValuePair> params=new ArrayList<NameValuePair>();
params.add(new BasicNameValuePair("file_real_name","work_order1.txt"));
String Result=postInputStream(url,inputStream,"work_order1.txt",params);
System.out.println("发送消息收到的返回："+Result);
}
public static String postInputStream(String requestUrl,InputStream inputStream, String fileName,
List<NameValuePair> params) throws Exception {
try {
CloseableHttpClient httpClient = HttpClients.createDefault();
// 创建 POST请求
HttpPost httpPost = new HttpPost(requestUrl);
// 构建多组件 Entrity构建器
MultipartEntityBuilder builder = MultipartEntityBuilder.create();
builder.setCharset(Charsets.UTF_8);
builder.setMode(HttpMultipartMode.BROWSER_COMPATIBLE);
//文件传输http请求头(multipart/form-data)
builder.addBinaryBody("file", inputStream, ContentType.MULTIPART_FORM_DATA, fileName);// 文件流
//字节传输http请求头(application/json)
ContentType contentType = ContentType.create("application/json", Charsets.UTF_8);
for (NameValuePair param : params) {
// 传输字节流
builder.addTextBody(param.getName(), param.getValue(), contentType);
}
HttpEntity entity = builder.build();
httpPost.setEntity(entity);
HttpResponse response = httpClient.execute(httpPost);
// 执行提交
HttpEntity responseEntity = response.getEntity();
if (responseEntity != null) {
// 将响应内容转换为字符串
return EntityUtils.toString(responseEntity, Charsets.UTF_8);
}
} catch (Exception e) {
throw new Exception("post请求失败，"+e.getMessage());
}
return "";
}
}
所需pom依赖：
<dependency>
<groupId>org.apache.httpcomponents</groupId>
<artifactId>httpclient</artifactId>
<version>4.5</version>
</dependency>
<dependency>
<groupId>org.apache.httpcomponents</groupId>
<artifactId>httpmime</artifactId>
<version>4.5</version>
</dependency>
以上是脚本宝典为你收集整理的将文件转换为文件流进行上传（例：通过HDMI进行传输）全部内容，希望文章能够帮你解决将文件转换为文件流进行上传（例：通过HDMI进行传输）所遇到的问题。
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