http www.java.xs_java 实现Http请求

左手的ㄟ右手 2022-11-10 05:58 151阅读 0赞

/\*\*

\* 使用HttpClient4.5 post提交multipart/form-data数据实现多文件上传

\* @param url 请求地址

\* @param multipartFiles post提交的文件列表

\* @param fileParName fileKey

\* @param params 附带的文本参数

\* @param timeout 请求超时时间(毫秒)

\* @return

\* @author lingtong\`

\* @date 2019年1月21日 上午11:36:15

\*/

public static Map httpPostRequest2(String url, List multipartFiles, String fileParName,

Map params, int timeout) \{

Map resultMap = new HashMap();

CloseableHttpClient httpClient = HttpClients.createDefault();

String result = "";

try \{

HttpPost httpPost = new HttpPost(url);

httpPost.setHeader("sign","86358999");

MultipartEntityBuilder builder = MultipartEntityBuilder.create();

builder.setCharset(java.nio.charset.Charset.forName("UTF-8"));

builder.setMode(HttpMultipartMode.BROWSER\_COMPATIBLE);

String fileName = null;

MultipartFile multipartFile = null;

if (multipartFiles != null)\{

for (int i = 0; i < multipartFiles.size(); i++) \{

multipartFile = multipartFiles.get(i);

fileName = multipartFile.getOriginalFilename();

builder.addBinaryBody(fileParName, multipartFile.getInputStream(), ContentType.MULTIPART\_FORM\_DATA, fileName);// 文件流

//决中文乱码

ContentType contentType = ContentType.create(HTTP.PLAIN\_TEXT\_TYPE, HTTP.UTF\_8);

for (Map.Entry entry : params.entrySet()) \{

if(entry.getValue() == null)

continue;

// 类似浏览器表单提交，对应input的name和value

builder.addTextBody(entry.getKey(), entry.getValue().toString(), contentType);

HttpEntity entity = builder.build();

httpPost.setEntity(entity);

HttpResponse response = httpClient.execute(httpPost);// 执行提交

// 设置连接超时时间

RequestConfig requestConfig = RequestConfig.custom().setConnectTimeout(timeout)

.setConnectionRequestTimeout(timeout).setSocketTimeout(timeout).build();

httpPost.setConfig(requestConfig);

HttpEntity responseEntity = response.getEntity();

resultMap.put("scode", String.valueOf(response.getStatusLine().getStatusCode()));

resultMap.put("data", "");

if (responseEntity != null) \{

// 将响应内容转换为字符串

result = EntityUtils.toString(responseEntity, java.nio.charset.Charset.forName("UTF-8"));

resultMap.put("data", result);

\} catch (Exception e) \{

resultMap.put("scode", "error");

resultMap.put("data", "HTTP请求出现异常: " + e.getMessage());

Writer w = new StringWriter();

e.printStackTrace(new PrintWriter(w));

//logger.error("HTTP请求出现异常: " + w.toString());

System.out.println("HTTP请求出现异常: " + w.toString());

\} finally \{

try \{

httpClient.close();

\} catch (IOException e) \{

e.printStackTrace();

return resultMap;

public static void main(String\[\] args)throws Exception\{

Map data = new HashMap<>();

/\*data中请求需要的参数\*/

data.put("account", "szsdtjtfafa");//账号

data.put("password", "Mima12345");//密码

//导入需要上传的文件

File file = new File("C:\\\\Users\\\\Thinkpa\\\\Desktop\\\\161616.jpg");

FileItem fileItem = dataFormat(file);

MultipartFile multipartFile = new CommonsMultipartFile(fileItem);

List list = new ArrayList();

list.add(multipartFile);

Map resultDataMap = httpPostRequest2("xxx/noticeInterface/save",list, "files", data, -1);

System.out.println("返回状态：========》"+resultDataMap.get("scode") + "==>data"+resultDataMap.get("data"));

public static FileItem dataFormat(File file)throws Exception\{

FileItem fileItem = new DiskFileItem("mm", Files.probeContentType(file.toPath()), false, file.getName(), (int) file.length(), file.getParentFile());

try \{

InputStream input = new FileInputStream(file);

OutputStream os = fileItem.getOutputStream();

IOUtils.copy(input, os);

//Or faster..

IOUtils.copy(new FileInputStream(file), fileItem.getOutputStream());

\} catch (IOException ex) \{

//do something.

return fileItem;

http www.java.xs_java 实现Http请求

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