/**
* 直接通过HTTP协议提交数据到服务器,实现如下面表单提交功能: <FORM METHOD=POST
* ACTION="http://192.168.1.101:8083/upload/servlet/UploadServlet" enctype="multipart/form-data">
* <INPUT TYPE="text" NAME="name"> <INPUT TYPE="text" NAME="id"> <input type="file" name="file"/>
* </FORM>
*
* @param path
* 上传路径(注：避免使用localhost或127.0.0.1这样的路径测试，因为它会指向手机模拟器，你可以使用http://www.iteye.cn或http://192.168.1.101:8083这样的路径测试)
* @param params 请求参数 key为参数名,value为参数值
* @param file 上传文件
*/
public static boolean post(String path, Map<String, String> params, FormFile[] files)
throws Exception {
final String BOUNDARY = "---------------------------7da2137580612"; // 数据分隔线
final String endline = "--" + BOUNDARY + "--\r\n"; // 数据结束标志
int fileDataLength = 0;
for (FormFile uploadFile : files) { // 得到文件类型数据的总长度
StringBuilder fileExplain = new StringBuilder();
fileExplain.append("--");
fileExplain.append(BOUNDARY);
fileExplain.append("\r\n");
fileExplain.append(
"Content-Disposition: form-data;name=\""
+ uploadFile.getParameterName()
+ "\";filename=\""
+ uploadFile.getFilname()
+ "\"\r\n");
fileExplain.append("Content-Type: " + uploadFile.getContentType() + "\r\n\r\n");
fileExplain.append("\r\n");
fileDataLength += fileExplain.length();
if (uploadFile.getInStream() != null) {
fileDataLength += uploadFile.getFile().length();
} else {
fileDataLength += uploadFile.getData().length;
}
}
System.out.println("1111111111111111111");
StringBuilder textEntity = new StringBuilder();
for (Map.Entry<String, String> entry : params.entrySet()) { // 构造文本类型参数的实体数据
textEntity.append("--");
textEntity.append(BOUNDARY);
textEntity.append("\r\n");
textEntity.append("Content-Disposition: form-data; name=\"" + entry.getKey() + "\"\r\n\r\n");
textEntity.append(entry.getValue());
textEntity.append("\r\n");
}
// 计算传输给服务器的实体数据总长度
int dataLength =
textEntity.toString().getBytes().length + fileDataLength + endline.getBytes().length;
URL url = new URL(path);
int port = url.getPort() == -1 ? 80 : url.getPort();
Socket socket = new Socket(InetAddress.getByName(url.getHost()), port);
OutputStream outStream = socket.getOutputStream();
// 下面完成HTTP请求头的发送
String requestmethod = "POST " + url.getPath() + " HTTP/1.1\r\n";
outStream.write(requestmethod.getBytes());
String accept =
"Accept: image/gif, image/jpeg, image/pjpeg, image/pjpeg, application/x-shockwave-flash, application/xaml+xml, application/vnd.ms-xpsdocument, application/x-ms-xbap, application/x-ms-application, application/vnd.ms-excel, application/vnd.ms-powerpoint, application/msword, */*\r\n";
outStream.write(accept.getBytes());
String language = "Accept-Language: zh-CN\r\n";
outStream.write(language.getBytes());
String contenttype = "Content-Type: multipart/form-data; boundary=" + BOUNDARY + "\r\n";
outStream.write(contenttype.getBytes());
String contentlength = "Content-Length: " + dataLength + "\r\n";
outStream.write(contentlength.getBytes());
String alive = "Connection: Keep-Alive\r\n";
outStream.write(alive.getBytes());
String host = "Host: " + url.getHost() + ":" + port + "\r\n";
outStream.write(host.getBytes());
// 写完HTTP请求头后根据HTTP协议再写一个回车换行
outStream.write("\r\n".getBytes());
// 把所有文本类型的实体数据发送出来
outStream.write(textEntity.toString().getBytes());
// 把所有文件类型的实体数据发送出来
for (FormFile uploadFile : files) {
StringBuilder fileEntity = new StringBuilder();
fileEntity.append("--");
fileEntity.append(BOUNDARY);
fileEntity.append("\r\n");
fileEntity.append(
"Content-Disposition: form-data;name=\""
+ uploadFile.getParameterName()
+ "\";filename=\""
+ uploadFile.getFilname()
+ "\"\r\n");
fileEntity.append("Content-Type: " + uploadFile.getContentType() + "\r\n\r\n");
outStream.write(fileEntity.toString().getBytes());
if (uploadFile.getInStream() != null) {
byte[] buffer = new byte[1024];
int len = 0;
while ((len = uploadFile.getInStream().read(buffer, 0, 1024)) != -1) {
outStream.write(buffer, 0, len);
}
uploadFile.getInStream().close();
} else {
outStream.write(uploadFile.getData(), 0, uploadFile.getData().length);
}
outStream.write("\r\n".getBytes());
}
// 下面发送数据结束标志，表示数据已经结束
outStream.write(endline.getBytes());
BufferedReader reader = new BufferedReader(new InputStreamReader(socket.getInputStream()));
String line;
while ((line = reader.readLine()) != null) {
System.out.println(line);
}
// if(reader.readLine().indexOf("200")==-1){//读取web服务器返回的数据，判断请求码是否为200，如果不是200，代表请求失败
// return false;
// }
outStream.flush();
outStream.close();
reader.close();
socket.close();
return true;
}
