如何使用点击上传按钮来上传具体名单形象 [英] How to upload specific List image using click on Upload button
本文介绍了如何使用点击上传按钮来上传具体名单形象的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！
问题描述
如何到特定的图像上传到服务器，每当用户不要点击上传按钮在列表视图项行
的使用以下行来显示特定图像名称对话框中，每当用户不要点击上传按钮：的
文件名= ImageList.get（位置）的ToString（）子（strPath.lastIndexOf（'/'）+ 1，strPath.length（））;
OldUploadActivity.java：
// btnUpload
btnUpload =（按钮）convertView.findViewById（R.id.btnUpload）;
btnUpload.setTextColor（Color.BLACK）;
btnUpload.setTag（strPath的）;
btnUpload.setOnClickListener（新View.OnClickListener（）{
@燮pressWarnings（德precation）
公共无效的onClick（视图v）{
//上传 文件名= ImageList.get（位置）的ToString（）子（strPath.lastIndexOf（'/'）+ 1，strPath.length（））; }
}）; //上传
公共无效startUpload（最终诠释位置）{
可运行可运行=新的Runnable（）{ 公共无效的run（）{
handler.post（新的Runnable（）{
公共无效的run（）{
视图V = lstView.getChildAt（位置 - lstView.getFirstVisiblePosition（））;
//显示进度
进度进度=（进度）v.findViewById（R.id.progressBar）;
progress.setVisibility（View.VISIBLE）; // 状态
TextView的状态=（TextView中）v.findViewById（R.id.ColStatus）;
status.setText（上传..）; 新UploadFileAsync（）执行（将String.valueOf（位置））;
}
}）;
}
};
新的线程（可运行）。开始（）;
}
//异步上传
公共类UploadFileAsync扩展的AsyncTask＆LT;弦乐，太虚，太虚＆GT; { 串resServer;
INT位置; 在preExecute保护无效（）{ super.on preExecute（）;
} @覆盖
保护无效doInBackground（字符串... PARAMS）{
// TODO自动生成方法存根 INT位置; 位置=的Integer.parseInt（PARAMS [0]）;
Log.d（位置::，+位置）; INT读取动作，方bytesAvailable，缓冲区大小;
字节[]缓冲区;
INT MAXBUFFERSIZE = 1 * 1024 * 1024;
中期业绩code = 0;
串resMessage =; 字符串lineEnd =\\ r \\ n;
串twoHyphens = - ;
字符串边界=*****;
串strSDPath; // 文件路径
strSDPath = ImageList.get（位置）的ToString（）; //上传到PHP脚本
字符串strUrlServer =http://10.0.2.2/res/files.php; 尝试{
/ **检查SD卡文件*** /
档案文件=新的文件（strSDPath）;
如果（！file.exists（））
{
resServer ={\\StatusID \\：\\0 \\，\\错误\\：\\请检查SD卡\\路径};
返回null;
} 的FileInputStream的FileInputStream =新的FileInputStream（新文件（strSDPath））; 网址URL =新的URL（strUrlServer）;
HttpURLConnection的康恩=（HttpURLConnection类）url.openConnection（）;
conn.setDoInput（真）;
conn.setDoOutput（真）;
conn.setUseCaches（假）;
conn.setRequestMethod（POST）; conn.setRequestProperty（连接，保持活动）;
conn.setRequestProperty（内容类型，
的multipart / form-data的;边界=+边界）; DataOutputStream类的OutputStream =新的DataOutputStream类（康恩
.getOutputStream（））;
outputStream.writeBytes（twoHyphens +边界+ lineEnd）;
的OutputStream
.writeBytes（内容处置：表格数据;名称= \\filUpload \\;文件名= \\
+ strSDPath +\\+ lineEnd）;
outputStream.writeBytes（lineEnd）; 参考bytesAvailable = fileInputStream.available（）;
BUFFERSIZE = Math.min（方bytesAvailable，MAXBUFFERSIZE）;
缓冲区=新的字节[缓冲区大小] //读取文件
读取动作= fileInputStream.read（缓冲液，0，缓冲区大小）; 而（读取动作大于0）{
outputStream.write（缓冲液，0，缓冲区大小）;
参考bytesAvailable = fileInputStream.available（）;
BUFFERSIZE = Math.min（方bytesAvailable，MAXBUFFERSIZE）;
读取动作= fileInputStream.read（缓冲液，0，缓冲区大小）;
} outputStream.writeBytes（lineEnd）;
outputStream.writeBytes（twoHyphens +边界+ twoHyphens + lineEnd）; //响应code和留言
RES code = conn.getResponse code（）;
如果（RES code == HttpURLConnection.HTTP_OK）
{
InputStream为= conn.getInputStream（）;
ByteArrayOutputStream BOS =新ByteArrayOutputStream（）; INT读= 0;
而（（读= is.read（））！= -1）{
bos.write（读）;
}
字节[]结果= bos.toByteArray（）;
bos.close（）; resMessage =新的字符串（结果）;
} Log.d（RES code =，Integer.toString（RES code））;
Log.d（resMessage =，resMessage.toString（））; fileInputStream.close（）;
outputStream.flush（）;
outputStream.close（）; resServer = resMessage.toString（）; }赶上（例外前）{
// 异常处理
返回null;
}
返回null;
} 保护无效onPostExecute（虚空未使用）{
statusWhenFinish（位置，resServer）;
}
} //当上传完成
保护无效statusWhenFinish（INT位置，弦乐resServer）{ 视图V = lstView.getChildAt（位置 - lstView.getFirstVisiblePosition（））; //显示进度
进度进度=（进度）v.findViewById（R.id.progressBar）;
progress.setVisibility（View.GONE）; // 状态
TextView的状态=（TextView中）v.findViewById（R.id.ColStatus）;
/*** 默认值 ***/
串strStatusID =0;
字符串strMessage =未知状态！; 尝试{
JSONObject的C =新的JSONObject（resServer）;
strStatusID = c.getString（StatusID）;
strMessage = c.getString（信息）;
}赶上（JSONException E）{
// TODO自动生成catch块
e.printStackTrace（）;
} // prepare状态
如果（strStatusID.equals（0））
{
//当更新失败
status.setText（strMessage）;
status.setTextColor（Color.RED）; 再次启用//按钮
按钮btnUpload =（按钮）v.findViewById（R.id.btnUpload）;
btnUpload.setText（已上传）;
btnUpload.setTextColor（Color.RED）;
btnUpload.setEnabled（真）;
}
其他
{
status.setText（上传完成）;
status.setTextColor（Color.GREEN）;
}
}
activity_column.xml：
＆LT;？XML版本=1.0编码=UTF-8＆GT？;
＆LT; LinearLayout中的xmlns：机器人=http://schemas.android.com/apk/res/android
机器人：方向=横向
机器人：layout_width =FILL_PARENT
机器人：layout_height =FILL_PARENT＆GT;＆LT; ImageView的
机器人：ID =@ + ID / ColImgPath
机器人：layout_width =110dp
机器人：layout_height =110dp
/＆GT;＆LT;进度
机器人：ID =@ + ID /进度
机器人：layout_width =WRAP_CONTENT
机器人：layout_height =WRAP_CONTENT/＆GT;＆LT; TableLayout
机器人：方向=垂直
机器人：layout_width =FILL_PARENT
机器人：layout_height =FILL_PARENT＆GT;＆LT;的TableRow
机器人：layout_width =WRAP_CONTENT
机器人：layout_height =WRAP_CONTENT＆GT;
＆LT;的TextView
机器人：ID =@ + ID / ColImgName
机器人：文字=1列/＆GT;
＆LT; /＆的TableRow GT;＆LT;的TableRow
机器人：layout_width =WRAP_CONTENT
机器人：layout_height =WRAP_CONTENT＆GT;＆LT;的TextView
机器人：ID =@ + ID / ColStatus
机器人：textAppearance =机器人：ATTR / textAppearanceSmall
机器人：文字=状态/＆GT;＆LT; /＆的TableRow GT;＆LT;的TableRow
机器人：layout_width =WRAP_CONTENT
机器人：layout_height =WRAP_CONTENT＆GT;＆LT;按钮
机器人：ID =@ + ID / btnUpload
风格=机器人：ATTR / buttonStyleSmall
机器人：layout_width =WRAP_CONTENT
机器人：layout_height =WRAP_CONTENT
机器人：文字=上传/＆GT;＆LT;按钮
机器人：ID =@ + ID / btnPrint
风格=机器人：ATTR / buttonStyleSmall
机器人：layout_width =WRAP_CONTENT
机器人：layout_height =WRAP_CONTENT
机器人：文字=打印/＆GT;
＆LT; /＆的TableRow GT;＆LT; / TableLayout＆GT;＆LT; / LinearLayout中＆GT;
解决方案
试试这个code：
btnUpload =（按钮）convertView.findViewById（R.id.btnUpload）;
btnUpload.setTextColor（Color.BLACK）;
btnUpload.setTag（strPath的）;
btnUpload.setOnClickListener（新View.OnClickListener（）{
@燮pressWarnings（德precation）
公共无效的onClick（视图v）{
//上传 startUpload（位置）;
文件名= ImageList.get（位置）的ToString（）
.substring（strPath.lastIndexOf（'/'）+ 1，strPath.length（））; }
}）;//上传
公共无效startUpload（最终诠释位置）{
可运行可运行=新的Runnable（）{ 公共无效的run（）{
handler.post（新的Runnable（）{
公共无效的run（）{
视图V = lstView.getChildAt（位置 - lstView.getFirstVisiblePosition（））;
//显示进度
进度进度=（进度）v.findViewById（R.id.progressBar）;
progress.setVisibility（View.VISIBLE）; // 状态
TextView的状态=（TextView中）v.findViewById（R.id.ColStatus）;
status.setText（上传..）; 新UploadFileAsync（）执行（将String.valueOf（位置））;
}
}）;
}
};
新的线程（可运行）。开始（）;
}
//异步上传
公共类UploadFileAsync扩展的AsyncTask＆LT;弦乐，太虚，太虚＆GT; { 串resServer;
INT位置; 在preExecute保护无效（）{ super.on preExecute（）;
} @覆盖
保护无效doInBackground（字符串... PARAMS）{
// TODO自动生成方法存根 INT位置; 位置=的Integer.parseInt（PARAMS [0]）;
Log.d（位置::，+位置）; INT读取动作，方bytesAvailable，缓冲区大小;
字节[]缓冲区;
INT MAXBUFFERSIZE = 1 * 1024 * 1024;
中期业绩code = 0;
串resMessage =; 字符串lineEnd =\\ r \\ n;
串twoHyphens = - ;
字符串边界=*****;
串strSDPath; // 文件路径
strSDPath = ImageList.get（位置）的ToString（）; //上传到PHP脚本
字符串strUrlServer =http://10.0.2.2/res/files.php; 尝试{
/ **检查SD卡文件*** /
档案文件=新的文件（strSDPath）;
如果（！file.exists（））
{
resServer ={\\StatusID \\：\\0 \\，\\错误\\：\\请检查SD卡\\路径};
返回null;
} 的FileInputStream的FileInputStream =新的FileInputStream（新文件（strSDPath））; 网址URL =新的URL（strUrlServer）;
HttpURLConnection的康恩=（HttpURLConnection类）url.openConnection（）;
conn.setDoInput（真）;
conn.setDoOutput（真）;
conn.setUseCaches（假）;
conn.setRequestMethod（POST）; conn.setRequestProperty（连接，保持活动）;
conn.setRequestProperty（内容类型，
的multipart / form-data的;边界=+边界）; DataOutputStream类的OutputStream =新的DataOutputStream类（康恩
.getOutputStream（））;
outputStream.writeBytes（twoHyphens +边界+ lineEnd）;
的OutputStream
.writeBytes（内容处置：表格数据;名称= \\filUpload \\;文件名= \\
+ strSDPath +\\+ lineEnd）;
outputStream.writeBytes（lineEnd）; 参考bytesAvailable = fileInputStream.available（）;
BUFFERSIZE = Math.min（方bytesAvailable，MAXBUFFERSIZE）;
缓冲区=新的字节[缓冲区大小] //读取文件
读取动作= fileInputStream.read（缓冲液，0，缓冲区大小）; 而（读取动作大于0）{
outputStream.write（缓冲液，0，缓冲区大小）;
参考bytesAvailable = fileInputStream.available（）;
BUFFERSIZE = Math.min（方bytesAvailable，MAXBUFFERSIZE）;
读取动作= fileInputStream.read（缓冲液，0，缓冲区大小）;
} outputStream.writeBytes（lineEnd）;
outputStream.writeBytes（twoHyphens +边界+ twoHyphens + lineEnd）; //响应code和留言
RES code = conn.getResponse code（）;
如果（RES code == HttpURLConnection.HTTP_OK）
{
InputStream为= conn.getInputStream（）;
ByteArrayOutputStream BOS =新ByteArrayOutputStream（）; INT读= 0;
而（（读= is.read（））！= -1）{
bos.write（读）;
}
字节[]结果= bos.toByteArray（）;
bos.close（）; resMessage =新的字符串（结果）;
} Log.d（RES code =，Integer.toString（RES code））;
Log.d（resMessage =，resMessage.toString（））; fileInputStream.close（）;
outputStream.flush（）;
outputStream.close（）; resServer = resMessage.toString（）; }赶上（例外前）{
// 异常处理
返回null;
}
返回null;
} 保护无效onPostExecute（虚空未使用）{
statusWhenFinish（位置，resServer）;
}
}
How to upload specific image to server, whenever user do click on Upload button in a List View Item Row
Using below line to show specific Image Name in Dialog Box, whenever user do click on Upload button:
fileName=ImageList.get(position).toString().substring(strPath.lastIndexOf('/')+1, strPath.length());
OldUploadActivity.java:
// btnUpload
btnUpload = (Button) convertView.findViewById(R.id.btnUpload);
btnUpload.setTextColor(Color.BLACK);
btnUpload.setTag(strPath);
btnUpload.setOnClickListener(new View.OnClickListener() {
@SuppressWarnings("deprecation")
public void onClick(View v) {
// Upload
fileName=ImageList.get(position).toString().substring(strPath.lastIndexOf('/')+1, strPath.length());
}
});
//Upload
public void startUpload(final int position) {
Runnable runnable = new Runnable() {
public void run() {
handler.post(new Runnable() {
public void run() {
View v = lstView.getChildAt(position - lstView.getFirstVisiblePosition());
// Show ProgressBar
ProgressBar progress = (ProgressBar)v.findViewById(R.id.progressBar);
progress.setVisibility(View.VISIBLE);
// Status
TextView status = (TextView)v.findViewById(R.id.ColStatus);
status.setText("Uploading..");
new UploadFileAsync().execute(String.valueOf(position));
}
});
}
};
new Thread(runnable).start();
}
// Async Upload
public class UploadFileAsync extends AsyncTask<String, Void, Void> {
String resServer;
int position;
protected void onPreExecute() {
super.onPreExecute();
}
@Override
protected Void doInBackground(String... params) {
// TODO Auto-generated method stub
int position;
position = Integer.parseInt(params[0]);
Log.d("position::", " " + position);
int bytesRead, bytesAvailable, bufferSize;
byte[] buffer;
int maxBufferSize = 1 * 1024 * 1024;
int resCode = 0;
String resMessage = "";
String lineEnd = "\r\n";
String twoHyphens = "--";
String boundary = "*****";
String strSDPath;
// File Path
strSDPath = ImageList.get(position).toString();
// Upload to PHP Script
String strUrlServer = "http://10.0.2.2/res/files.php";
try {
/** Check file on SD Card ***/
File file = new File(strSDPath);
if(!file.exists())
{
resServer = "{\"StatusID\":\"0\",\"Error\":\"Please check path on SD Card\"}";
return null;
}
FileInputStream fileInputStream = new FileInputStream(new File(strSDPath));
URL url = new URL(strUrlServer);
HttpURLConnection conn = (HttpURLConnection) url.openConnection();
conn.setDoInput(true);
conn.setDoOutput(true);
conn.setUseCaches(false);
conn.setRequestMethod("POST");
conn.setRequestProperty("Connection", "Keep-Alive");
conn.setRequestProperty("Content-Type",
"multipart/form-data;boundary=" + boundary);
DataOutputStream outputStream = new DataOutputStream(conn
.getOutputStream());
outputStream.writeBytes(twoHyphens + boundary + lineEnd);
outputStream
.writeBytes("Content-Disposition: form-data; name=\"filUpload\";filename=\""
+ strSDPath + "\"" + lineEnd);
outputStream.writeBytes(lineEnd);
bytesAvailable = fileInputStream.available();
bufferSize = Math.min(bytesAvailable, maxBufferSize);
buffer = new byte[bufferSize];
// Read file
bytesRead = fileInputStream.read(buffer, 0, bufferSize);
while (bytesRead > 0) {
outputStream.write(buffer, 0, bufferSize);
bytesAvailable = fileInputStream.available();
bufferSize = Math.min(bytesAvailable, maxBufferSize);
bytesRead = fileInputStream.read(buffer, 0, bufferSize);
}
outputStream.writeBytes(lineEnd);
outputStream.writeBytes(twoHyphens + boundary + twoHyphens + lineEnd);
// Response Code and Message
resCode = conn.getResponseCode();
if(resCode == HttpURLConnection.HTTP_OK)
{
InputStream is = conn.getInputStream();
ByteArrayOutputStream bos = new ByteArrayOutputStream();
int read = 0;
while ((read = is.read()) != -1) {
bos.write(read);
}
byte[] result = bos.toByteArray();
bos.close();
resMessage = new String(result);
}
Log.d("resCode=",Integer.toString(resCode));
Log.d("resMessage=",resMessage.toString());
fileInputStream.close();
outputStream.flush();
outputStream.close();
resServer = resMessage.toString();
} catch (Exception ex) {
// Exception handling
return null;
}
return null;
}
protected void onPostExecute(Void unused) {
statusWhenFinish(position,resServer);
}
}
// when upload finish
protected void statusWhenFinish(int position, String resServer) {
View v = lstView.getChildAt(position - lstView.getFirstVisiblePosition());
// Show ProgressBar
ProgressBar progress = (ProgressBar)v.findViewById(R.id.progressBar);
progress.setVisibility(View.GONE);
// Status
TextView status = (TextView)v.findViewById(R.id.ColStatus);
/*** Default Value ***/
String strStatusID = "0";
String strMessage = "Unknow Status!";
try {
JSONObject c = new JSONObject(resServer);
strStatusID = c.getString("StatusID");
strMessage = c.getString("Message");
} catch (JSONException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
// Prepare Status
if(strStatusID.equals("0"))
{
// When update Failed
status.setText( strMessage );
status.setTextColor(Color.RED);
// Enabled Button again
Button btnUpload = (Button) v.findViewById(R.id.btnUpload);
btnUpload.setText("Already Uploaded");
btnUpload.setTextColor(Color.RED);
btnUpload.setEnabled(true);
}
else
{
status.setText("Upload Completed");
status.setTextColor(Color.GREEN);
}
}
activity_column.xml:
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="horizontal"
android:layout_width="fill_parent"
android:layout_height="fill_parent">
<ImageView
android:id="@+id/ColImgPath"
android:layout_width="110dp"
android:layout_height="110dp"
/>
<ProgressBar
android:id="@+id/progressBar"
android:layout_width="wrap_content"
android:layout_height="wrap_content"/>
<TableLayout
android:orientation="vertical"
android:layout_width="fill_parent"
android:layout_height="fill_parent">
<TableRow
android:layout_width="wrap_content"
android:layout_height="wrap_content" >
<TextView
android:id="@+id/ColImgName"
android:text="Column 1" />
</TableRow>
<TableRow
android:layout_width="wrap_content"
android:layout_height="wrap_content">
<TextView
android:id="@+id/ColStatus"
android:textAppearance="?android:attr/textAppearanceSmall"
android:text="Status" />
</TableRow>
<TableRow
android:layout_width="wrap_content"
android:layout_height="wrap_content" >
<Button
android:id="@+id/btnUpload"
style="?android:attr/buttonStyleSmall"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Upload" />
<Button
android:id="@+id/btnPrint"
style="?android:attr/buttonStyleSmall"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Print" />
</TableRow>
</TableLayout>
</LinearLayout>
解决方案
Try this code:
btnUpload = (Button) convertView.findViewById(R.id.btnUpload);
btnUpload.setTextColor(Color.BLACK);
btnUpload.setTag(strPath);
btnUpload.setOnClickListener(new View.OnClickListener() {
@SuppressWarnings("deprecation")
public void onClick(View v) {
// Upload
startUpload(position);
fileName=ImageList.get(position).toString()
.substring(strPath.lastIndexOf('/')+1, strPath.length());
}
});
//Upload
public void startUpload(final int position) {
Runnable runnable = new Runnable() {
public void run() {
handler.post(new Runnable() {
public void run() {
View v = lstView.getChildAt(position - lstView.getFirstVisiblePosition());
// Show ProgressBar
ProgressBar progress = (ProgressBar)v.findViewById(R.id.progressBar);
progress.setVisibility(View.VISIBLE);
// Status
TextView status = (TextView)v.findViewById(R.id.ColStatus);
status.setText("Uploading..");
new UploadFileAsync().execute(String.valueOf(position));
}
});
}
};
new Thread(runnable).start();
}
// Async Upload
public class UploadFileAsync extends AsyncTask<String, Void, Void> {
String resServer;
int position;
protected void onPreExecute() {
super.onPreExecute();
}
@Override
protected Void doInBackground(String... params) {
// TODO Auto-generated method stub
int position;
position = Integer.parseInt(params[0]);
Log.d("position::", " " + position);
int bytesRead, bytesAvailable, bufferSize;
byte[] buffer;
int maxBufferSize = 1 * 1024 * 1024;
int resCode = 0;
String resMessage = "";
String lineEnd = "\r\n";
String twoHyphens = "--";
String boundary = "*****";
String strSDPath;
// File Path
strSDPath = ImageList.get(position).toString();
// Upload to PHP Script
String strUrlServer = "http://10.0.2.2/res/files.php";
try {
/** Check file on SD Card ***/
File file = new File(strSDPath);
if(!file.exists())
{
resServer = "{\"StatusID\":\"0\",\"Error\":\"Please check path on SD Card\"}";
return null;
}
FileInputStream fileInputStream = new FileInputStream(new File(strSDPath));
URL url = new URL(strUrlServer);
HttpURLConnection conn = (HttpURLConnection) url.openConnection();
conn.setDoInput(true);
conn.setDoOutput(true);
conn.setUseCaches(false);
conn.setRequestMethod("POST");
conn.setRequestProperty("Connection", "Keep-Alive");
conn.setRequestProperty("Content-Type",
"multipart/form-data;boundary=" + boundary);
DataOutputStream outputStream = new DataOutputStream(conn
.getOutputStream());
outputStream.writeBytes(twoHyphens + boundary + lineEnd);
outputStream
.writeBytes("Content-Disposition: form-data; name=\"filUpload\";filename=\""
+ strSDPath + "\"" + lineEnd);
outputStream.writeBytes(lineEnd);
bytesAvailable = fileInputStream.available();
bufferSize = Math.min(bytesAvailable, maxBufferSize);
buffer = new byte[bufferSize];
// Read file
bytesRead = fileInputStream.read(buffer, 0, bufferSize);
while (bytesRead > 0) {
outputStream.write(buffer, 0, bufferSize);
bytesAvailable = fileInputStream.available();
bufferSize = Math.min(bytesAvailable, maxBufferSize);
bytesRead = fileInputStream.read(buffer, 0, bufferSize);
}
outputStream.writeBytes(lineEnd);
outputStream.writeBytes(twoHyphens + boundary + twoHyphens + lineEnd);
// Response Code and Message
resCode = conn.getResponseCode();
if(resCode == HttpURLConnection.HTTP_OK)
{
InputStream is = conn.getInputStream();
ByteArrayOutputStream bos = new ByteArrayOutputStream();
int read = 0;
while ((read = is.read()) != -1) {
bos.write(read);
}
byte[] result = bos.toByteArray();
bos.close();
resMessage = new String(result);
}
Log.d("resCode=",Integer.toString(resCode));
Log.d("resMessage=",resMessage.toString());
fileInputStream.close();
outputStream.flush();
outputStream.close();
resServer = resMessage.toString();
} catch (Exception ex) {
// Exception handling
return null;
}
return null;
}
protected void onPostExecute(Void unused) {
statusWhenFinish(position,resServer);
}
}
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