Android想服务器传图片,透过流的方式。还有读取服务器图片(文件),也通过流的方式。


/**
* Created by Administrator on 2016/7/19.
*/ import android.util.Log; import com.gtercn.asPolice.net.HttpsTrustManager; import java.io.DataOutputStream;
import java.io.File;
import java.io.FileInputStream;
import java.io.IOException;
import java.io.InputStream;
import java.net.MalformedURLException;
import java.net.URL;
import java.security.KeyManagementException;
import java.security.NoSuchAlgorithmException;
import java.security.SecureRandom;
import java.util.UUID; import javax.net.ssl.HostnameVerifier;
import javax.net.ssl.HttpsURLConnection;
import javax.net.ssl.SSLContext;
import javax.net.ssl.SSLSession;
import javax.net.ssl.SSLSocketFactory;
import javax.net.ssl.TrustManager; /**
*
* 上传头像工具类
* Https协议的
* @author spring sky Email:vipa1888@163.com QQ:840950105 MyName:石明政
*/
public class UpdateImage {
private static final String TAG = "uploadFile";
private static final int TIME_OUT = * ; // 超时时间
private static final String CHARSET = "utf-8"; // 设置编码 /**
* Android上传文具到服务端
*
* @param file
* 需要上传的文件
* @param RequestURL
* 请求的rul
* @return 返回响应的内容
*/
public static String uploadFile(File file, String RequestURL) {
String result = null;
String BOUNDARY = UUID.randomUUID().toString(); // 边界标识 随机生成
String PREFIX = "--", LINE_END = "\r\n";
String CONTENT_TYPE = "multipart/form-data"; // 内容类型 try {
URL url = new URL(RequestURL);
HttpsURLConnection conn = (HttpsURLConnection) url.openConnection();
conn.setSSLSocketFactory(getSocketFactoryCertificate());
conn.setHostnameVerifier(getHostnameVerifier());
conn.setReadTimeout(TIME_OUT);
conn.setConnectTimeout(TIME_OUT);
conn.setDoInput(true); // 允许输入流
conn.setDoOutput(true); // 允许输出流
conn.setUseCaches(false); // 不允许使用缓存
conn.setRequestMethod("POST"); // 请求方式
conn.setRequestProperty("Charset", CHARSET); // 设置编码
conn.setRequestProperty("connection", "keep-alive");
conn.setRequestProperty("Content-Type", CONTENT_TYPE + ";boundary="
+ BOUNDARY);
conn.setRequestProperty("api-version", "1.0");
if (file != null) {
/**
* 当文件不为空,把文件包装并且上传
*/
Log.e("======","====DataOutputStream===");
DataOutputStream dos = new DataOutputStream(conn.getOutputStream());
StringBuffer sb = new StringBuffer();
sb.append(PREFIX);
sb.append(BOUNDARY);
sb.append(LINE_END);
/**
* 这里重点注意: name里面的值为服务端需要key 只有这个key 才可以得到对应的文件
* filename是文件的名字,包含后缀名的 比如:abc.png
*/
sb.append("Content-Disposition: form-data; name=\"avatar\"; filename=\""
+ file.getName() + "\"" + LINE_END);
sb.append("Content-Type: application/octet-stream; charset="
+ CHARSET + LINE_END);
sb.append(LINE_END);
dos.write(sb.toString().getBytes());
InputStream is = new FileInputStream(file);
byte[] bytes = new byte[];
int len = ;
while ((len = is.read(bytes)) != -) {
dos.write(bytes, , len);
}
is.close();
dos.write(LINE_END.getBytes());
byte[] end_data = (PREFIX + BOUNDARY + PREFIX + LINE_END)
.getBytes();
dos.write(end_data);
dos.flush();
Log.e("======","====flush==="); /**
* 获取响应码 200=成功 当响应成功,获取响应的流
*/
int res = conn.getResponseCode();
Log.e("========", "response code:" + res);
if(res==)
{
Log.e(TAG, "request success");
InputStream input = conn.getInputStream();
StringBuffer sb1 = new StringBuffer();
int ss;
while ((ss = input.read()) != -) {
sb1.append((char) ss);
}
result = sb1.toString();
Log.e(TAG, "result : " + result);
}
else{
Log.e(TAG, "request error");
}
}
} catch (MalformedURLException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
return result;
}
private static SSLSocketFactory getSocketFactoryCertificate(){ // String keyStoreType = "BKS";
// int keyStoreResId = R.raw.cert;
try {
/* CertificateFactory certificateFactory = CertificateFactory.getInstance("X.509");
// cert is under R.raw.cert
InputStream inputStream = ContextService.getInstance().getContext().
getResources().openRawResource(keyStoreResId);//(R.raw.cert);
Certificate certificate = certificateFactory.generateCertificate(inputStream);
inputStream.close(); if(keyStoreType == null || keyStoreType.length() == 0){
keyStoreType = KeyStore.getDefaultType();
}
//BKS
KeyStore trustStore = KeyStore.getInstance(keyStoreType);
trustStore.load(null, null);
trustStore.setCertificateEntry("ca",certificate); String tmfAlgorithm = TrustManagerFactory.getDefaultAlgorithm();
TrustManagerFactory tmf = TrustManagerFactory.getInstance(tmfAlgorithm);
tmf.init(trustStore); // TrustManager[] trustManagers = new TrustManager[]{new HttpsTrustManager(tmf.getTrustManagers())};
TrustManager[] trustManagers = getWrappedTrustManagers(tmf.getTrustManagers());*/ TrustManager[] trustManagers = new TrustManager[]{new HttpsTrustManager()};
SSLContext ssLContext = SSLContext.getInstance("TLS");
ssLContext.init(null, trustManagers, new SecureRandom()); return ssLContext.getSocketFactory();
} catch (NoSuchAlgorithmException e) {
e.printStackTrace();
} catch (KeyManagementException e) {
e.printStackTrace();
}
return null;
} private static HostnameVerifier getHostnameVerifier() {
return new HostnameVerifier() {
@Override
public boolean verify(String hostname, SSLSession session) {
//return true; // verify always returns true, which could cause insecure network traffic due to trusting TLS/SSL server certificates for wrong hostnames
HostnameVerifier hv = HttpsURLConnection.getDefaultHostnameVerifier();
return true;//hv.verify("localhost", session);
}
};
} }
import android.util.Log;

import com.gtercn.asPolice.net.HttpsTrustManager;

import java.io.DataOutputStream;
import java.io.File;
import java.io.FileInputStream;
import java.io.IOException;
import java.io.InputStream;
import java.net.MalformedURLException;
import java.net.URL;
import java.security.KeyManagementException;
import java.security.NoSuchAlgorithmException;
import java.security.SecureRandom;
import java.util.UUID; import javax.net.ssl.HostnameVerifier;
import javax.net.ssl.HttpsURLConnection;
import javax.net.ssl.SSLContext;
import javax.net.ssl.SSLSession;
import javax.net.ssl.SSLSocketFactory;
import javax.net.ssl.TrustManager; /**
*
* 上传头像工具类
*Http协议的
* @author spring sky Email:vipa1888@163.com QQ:840950105 MyName:石明政
*/
public class UpdateImage {
private static final String TAG = "uploadFile";
private static final int TIME_OUT = 10 * 1000; // 超时时间
private static final String CHARSET = "utf-8"; // 设置编码 /**
* Android上传文具到服务端
*
* @param file
* 需要上传的文件
* @param RequestURL
* 请求的rul
* @return 返回响应的内容
*/
public static String uploadFile(File file, String RequestURL) {
String result = null;
String BOUNDARY = UUID.randomUUID().toString(); // 边界标识 随机生成
String PREFIX = "--", LINE_END = "\r\n";
String CONTENT_TYPE = "multipart/form-data"; // 内容类型 try {
URL url = new URL(RequestURL);
HttpURLConnection conn = (HttpURLConnection) url.openConnection();
conn.setReadTimeout(TIME_OUT);
conn.setConnectTimeout(TIME_OUT);
conn.setDoInput(true); // 允许输入流
conn.setDoOutput(true); // 允许输出流
conn.setUseCaches(false); // 不允许使用缓存
conn.setRequestMethod("POST"); // 请求方式
conn.setRequestProperty("Charset", CHARSET); // 设置编码
conn.setRequestProperty("connection", "keep-alive");
conn.setRequestProperty("Content-Type", CONTENT_TYPE + ";boundary="
+ BOUNDARY);
conn.setRequestProperty("api-version", "1.0"); //请求头,根据要求要还是不要
if (file != null) {
/**
* 当文件不为空,把文件包装并且上传
*/
Log.e("======","====DataOutputStream===");
DataOutputStream dos = new DataOutputStream(conn.getOutputStream());
StringBuffer sb = new StringBuffer();
sb.append(PREFIX);
sb.append(BOUNDARY);
sb.append(LINE_END);
/**
* 这里重点注意: name里面的值为服务端需要key 只有这个key 才可以得到对应的文件
* filename是文件的名字,包含后缀名的 比如:abc.png
*/
sb.append("Content-Disposition: form-data; name=\"avatar\"; filename=\""
+ file.getName() + "\"" + LINE_END);
sb.append("Content-Type: application/octet-stream; charset="
+ CHARSET + LINE_END);
sb.append(LINE_END);
dos.write(sb.toString().getBytes());
InputStream is = new FileInputStream(file);
byte[] bytes = new byte[1024];
int len = 0;
while ((len = is.read(bytes)) != -1) {
dos.write(bytes, 0, len);
}
is.close();
dos.write(LINE_END.getBytes());
byte[] end_data = (PREFIX + BOUNDARY + PREFIX + LINE_END)
.getBytes();
dos.write(end_data);
dos.flush();
Log.e("======","====flush==="); /**
* 获取响应码 200=成功 当响应成功,获取响应的流
*/
int res = conn.getResponseCode();
Log.e("========", "response code:" + res);
if(res==200)
{
Log.e(TAG, "request success");
InputStream input = conn.getInputStream();
StringBuffer sb1 = new StringBuffer();
int ss;
while ((ss = input.read()) != -1) {
sb1.append((char) ss);
}
result = sb1.toString();
Log.e(TAG, "result : " + result);
}
else{
Log.e(TAG, "request error");
}
}
} catch (MalformedURLException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
return result;
}

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import android.util.Log;

import java.io.File;
import java.io.FileOutputStream;
import java.io.InputStream;
import java.net.HttpURLConnection;
import java.net.URL; /**
* Created by Administrator on 2016/7/20.
*/
public class DownloadPicture {
//加载图片
public static File getdFile(String path, String filepath) throws Exception {
URL url = new URL(path);//
HttpURLConnection connection = (HttpURLConnection) url.openConnection();//从网络获得链接
connection.setRequestMethod("GET");//获得
connection.setConnectTimeout(5000);//设置超时时间为5s
connection.setRequestProperty("api-version", "1.0");
if (connection.getResponseCode() == 200)//检测是否正常返回数据请求 详情参照http协议
{
InputStream is = connection.getInputStream();//获得输入流
File file = new File(filepath);//新建一个file文件
FileOutputStream fos = new FileOutputStream(file);//对应文件建立输出流
byte[] buffer = new byte[1024];//新建缓存 用来存储 从网络读取数据 再写入文件
int len = 0;
while ((len = is.read(buffer)) != -1) {//当没有读到最后的时候
fos.write(buffer, 0, len);//将缓存中的存储的文件流秀娥问file文件
}
fos.flush();//将缓存中的写入file
fos.close();
is.close();//将输入流 输出流关闭
Log.e("========", "++++++file++++" + file);
return file;
}else{
Log.e("======","-----getResponseCode----"+connection.getResponseCode());
return null;
} } }
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