增加方法

src/main/java/com/egolm/common/HttpUtil.java

 package com.egolm.common;
 
+import java.io.ByteArrayOutputStream;
+import java.io.File;
+import java.io.FileInputStream;
 import java.io.IOException;
 import java.io.OutputStream;
 import java.io.UnsupportedEncodingException;
@@ -215,4 +218,111 @@ public class HttpUtil {
 		return StringUtil.join("&", params);
 	}
 	
+	
+	public static String post(String requestUrl, Map<String, Object> parameters, Map<String, String> headers, Map<String, File> attachments) {
+		HttpURLConnection connection = null;
+		try {
+			Data data = new Data();
+			String BOUNDARY = "----WebKitFormBoundaryT1HoybnYeFOGFlBR";
+			StringBuffer ParamBuffer = new StringBuffer();
+			if (parameters != null) {
+				for (String key : parameters.keySet()) {
+					ParamBuffer.append("--" + BOUNDARY + "\r\n");
+					ParamBuffer.append("Content-Disposition: form-data; name=\"" + key + "\"\r\n");
+					ParamBuffer.append("\r\n");
+					ParamBuffer.append(parameters.get(key) + "\r\n");
+				}
+			}
+			ParamBuffer.append("--" + BOUNDARY + "\r\nContent-Disposition: form-data; name=\"----------------------------------\"\r\n\r\n-------------------------\r\n");
+			String ParamBufferString = ParamBuffer.toString();
+			data.add(ParamBufferString.getBytes());
+			if(attachments != null) {
+				for(String name : attachments.keySet()) {
+					StringBuffer FileBuffer = new StringBuffer();
+					File file = attachments.get(name);
+					FileBuffer.append("--" + BOUNDARY + "\r\n");
+					FileBuffer.append("Content-Disposition: form-data; name=\"" + name + "\"; filename=\"" + file.getName() + "\"" + "\r\n");
+					FileBuffer.append("Content-Type: application/octet-stream" + "\r\n");
+					FileBuffer.append("\r\n");
+					String FileBufferString = FileBuffer.toString();
+					data.add(FileBufferString.getBytes());
+					data.add(file);
+					String FileEnd = "\r\n";
+					data.add(FileEnd.getBytes());
+				}
+			}
+			StringBuffer EndBuffer = new StringBuffer("\r\n--" + BOUNDARY + "--\r\n");
+			String EndBufferString = EndBuffer.toString();
+			data.add(EndBufferString.getBytes());
+			URL url = new URL(requestUrl);
+			connection = (HttpURLConnection)url.openConnection();
+			connection.setRequestMethod("POST");
+			connection.setRequestProperty("Accept-Charset", "utf-8");
+			connection.setRequestProperty("Content-Type", "multipart/form-data; boundary=" + BOUNDARY);
+			connection.setRequestProperty("Content-Length", String.valueOf(data.length()));
+			if(headers != null) {
+				for(String key : headers.keySet()) {
+					connection.setRequestProperty(key, headers.get(key));
+				}
+			}
+			connection.setDoOutput(true);
+			OutputStream out = connection.getOutputStream();
+			out.write(data.bytes());
+			out.close();
+			return responseBody(connection);
+		} catch (Exception e) {
+			throw new RuntimeException(e);
+		} finally {
+			connection.disconnect();
+		}
+	}
+	
+	
+	static class Data {
+		
+		private byte[][] ds = new byte[0][0];
+		
+		public void add(File file) throws IOException {
+			FileInputStream fis = new FileInputStream(file);  
+            ByteArrayOutputStream bos = new ByteArrayOutputStream(1000);  
+            byte[] b = new byte[1000];  
+            int n;  
+            while ((n = fis.read(b)) != -1) {  
+                bos.write(b, 0, n);  
+            }  
+            fis.close();  
+            bos.close();  
+            add(bos.toByteArray());
+		}
+		
+		public void add(byte[] data) {
+			int length = ds.length;
+			byte[][] ds_tmp = new byte[length + 1][];
+			for(int i = 0; i < length; i++) {
+				ds_tmp[i] = ds[i];
+			}
+			ds_tmp[length] = data;
+			ds = ds_tmp;
+		}
+		
+		public int length() {
+			int length = 0;
+			for(byte[] b : ds) {
+				length += b.length;
+			}
+			return length; 
+		}
+		
+		public byte[] bytes() {
+			byte[] bytes = new byte[length()];
+			int index = 0;
+			for(int i = 0; i < ds.length; i++) {
+				for(int k = 0; k < ds[i].length; k++) {
+					bytes[index++] = ds[i][k];
+				}
+			}
+			return bytes;
+		}
+	}
+	
 }