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package com.luna.ali.oss;
import java.io.*;
import java.net.HttpURLConnection;
import java.net.URL;
import java.util.Iterator;
import java.util.LinkedHashMap;
import java.util.Map;
import javax.activation.MimetypesFileTypeMap;
import com.aliyun.oss.common.utils.BinaryUtil;
import com.aliyun.oss.internal.OSSUtils;
import com.aliyun.oss.model.Callback;
import com.luna.ali.config.AliOssConfigProperties;
import com.luna.common.encrypt.HashUtils;
import com.luna.common.text.Base64Util;
public class PostObjectSample {
/**
* 表单上传
*
* @param localFilePath 上传文件
* @param bucketName
* @param objectName 设置文件名称
* @param aliOssConfigProperties
* @throws Exception
*/
private void postObjectByForm(String localFilePath, String bucketName, String objectName,
AliOssConfigProperties aliOssConfigProperties) throws Exception {
// 在URL中添加存储空间名称，添加后URL如下：http://yourBucketName.oss-cn-hangzhou.aliyuncs.com。
String host = aliOssConfigProperties.getHost().replace("http://", "http://" + bucketName + ".");
// 设置表单Map。
Map formFields = new LinkedHashMap();
// 设置文件名称。
formFields.put("objectName", objectName);
// 设置Content-Disposition。
formFields.put("Content-Disposition", "attachment;filename="
+ localFilePath);
// 设置回调参数。
Callback callback = AliOssUtil.getCallback(aliOssConfigProperties.getServerUrl());
// 在表单Map中设置回调参数。
setCallBack(formFields, callback);
// 设置OSSAccessKeyId。
formFields.put("OSSAccessKeyId", aliOssConfigProperties.getOssId());
String policy =
"{\"expiration\": \"2120-01-01T12:00:00.000Z\",\"conditions\": [[\"content-length-range\", 0, 104857600]]}";
String encodePolicy = Base64Util.encodeBase64(policy.getBytes());
// 设置policy。
formFields.put("policy", encodePolicy);
// 生成签名。
String signaturecom =
com.aliyun.oss.common.auth.ServiceSignature.create().computeSignature(aliOssConfigProperties.getOssKey(),
encodePolicy);
// 设置签名。
formFields.put("Signature", signaturecom);
String ret = formUpload(host, formFields, localFilePath);
System.out.println("Post Object [" + objectName + "] to bucket [" + bucketName + "]");
System.out.println("post reponse:" + ret);
}
private static String formUpload(String host, Map formFields, String localFile)
throws Exception {
String res = "";
HttpURLConnection conn = null;
String boundary = "9431149156168";
try {
URL url = new URL(host);
conn = (HttpURLConnection)url.openConnection();
conn.setConnectTimeout(5000);
conn.setReadTimeout(30000);
conn.setDoOutput(true);
conn.setDoInput(true);
conn.setRequestMethod("POST");
conn.setRequestProperty("User-Agent",
"Mozilla/5.0 (Windows; U; Windows NT 6.1; zh-CN; rv:1.9.2.6)");
// 设置MD5值。MD5值由整个body计算得出。
conn.setRequestProperty("Content-MD5", HashUtils.md5WithFile(localFile));
conn.setRequestProperty("Content-Type",
"multipart/form-data; boundary=" + boundary);
OutputStream out = new DataOutputStream(conn.getOutputStream());
// 遍历读取表单Map中的数据，将数据写入到输出流中。
if (formFields != null) {
StringBuffer strBuf = new StringBuffer();
Iterator> iter = formFields.entrySet().iterator();
int i = 0;
while (iter.hasNext()) {
Map.Entry entry = iter.next();
String inputName = entry.getKey();
String inputValue = entry.getValue();
if (inputValue == null) {
continue;
}
if (i == 0) {
strBuf.append("--").append(boundary).append("\r\n");
strBuf.append("Content-Disposition: form-data; name=\""
+ inputName + "\"\r\n\r\n");
strBuf.append(inputValue);
} else {
strBuf.append("\r\n").append("--").append(boundary).append("\r\n");
strBuf.append("Content-Disposition: form-data; name=\""
+ inputName + "\"\r\n\r\n");
strBuf.append(inputValue);
}
i++;
}
out.write(strBuf.toString().getBytes());
}
// 读取文件信息，将要上传的文件写入到输出流中。
File file = new File(localFile);
String filename = file.getName();
String contentType = new MimetypesFileTypeMap().getContentType(file);
if (contentType == null || contentType.equals("")) {
contentType = "application/octet-stream";
}
StringBuffer strBuf = new StringBuffer();
strBuf.append("\r\n").append("--").append(boundary)
.append("\r\n");
strBuf.append("Content-Disposition: form-data; name=\"file\"; "
+ "filename=\"" + filename + "\"\r\n");
strBuf.append("Content-Type: " + contentType + "\r\n\r\n");
out.write(strBuf.toString().getBytes());
DataInputStream in = new DataInputStream(new FileInputStream(file));
int bytes = 0;
byte[] bufferOut = new byte[1024];
while ((bytes = in.read(bufferOut)) != -1) {
out.write(bufferOut, 0, bytes);
}
in.close();
byte[] endData = ("\r\n--" + boundary + "--\r\n").getBytes();
out.write(endData);
out.flush();
out.close();
// 读取返回数据。
strBuf = new StringBuffer();
BufferedReader reader = new BufferedReader(new InputStreamReader(conn.getInputStream()));
String line = null;
while ((line = reader.readLine()) != null) {
strBuf.append(line).append("\n");
}
res = strBuf.toString();
reader.close();
reader = null;
} catch (Exception e) {
System.err.println("Send post request exception: " + e);
throw e;
} finally {
if (conn != null) {
conn.disconnect();
conn = null;
}
}
return res;
}
private static void setCallBack(Map formFields, Callback callback) {
if (callback != null) {
String jsonCb = OSSUtils.jsonizeCallback(callback);
String base64Cb = BinaryUtil.toBase64String(jsonCb.getBytes());
formFields.put("callback", base64Cb);
if (callback.hasCallbackVar()) {
Map varMap = callback.getCallbackVar();
for (Map.Entry entry : varMap.entrySet()) {
formFields.put(entry.getKey(), entry.getValue());
}
}
}
}
}