复制内容到剪贴板
代码:
/**
* @author 一骑绝尘(王真-aleel)
* @time 2004-11-23
*/
package org.yuchen.struts;
import java.io.ByteArrayOutputStream;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.sql.SQLException;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.apache.struts.action.Action;
import org.apache.struts.action.ActionForm;
import org.apache.struts.action.ActionForward;
import org.apache.struts.action.ActionMapping;
import org.apache.struts.upload.FormFile;
import org.yuchen.conf.GetRealPath;
import org.yuchen.conf.Logger;
import org.yuchen.file.HtmlWriter;
import org.yuchen.image.ImageTransform;
import org.yuchen.mysql.DBConn;
import org.yuchen.util.time.Date;
public class UploadAction extends Action {
private DBConn dbConn;
public ActionForward perform(ActionMapping mapping, ActionForm form,
HttpServletRequest request, HttpServletResponse response) {
if (form instanceof UploadForm) {
UploadForm theForm = (UploadForm) form;
//retrieve the text data
String text = theForm.getTheText();
//retrieve the file representation
FormFile file = theForm.getTheFile();
//retrieve the file name
String fileName = file.getFileName();
//retrieve the content type
String contentType = file.getContentType();
boolean writeFile = theForm.getWriteFile();
//retrieve the file size
String size = (file.getFileSize() + \" bytes\");
Date date = new Date();
date.setPara(\"yyyy-MM-dd HH:mm:ss\");
String dateStr = date.getDate().replace(\':\', \'.\');
String data = null;
try {
if (text == null || fileName == null || text.equals(\"\")
|| fileName.equals(\"\")) {
throw new IOException(\"the text or file name is null\");
}
if (text.length() > 100) {
throw new IllegalArgumentException(
\"the text length is too long!\");
}
//insert data into database
dbConn = new DBConn();
String sql = \"insert into yp_picture(photo_title,photo_file_name,essayId) values(\'\"
+ text
+ \"\',\'\"
+ dateStr
+ \"\',\"
+ Integer.parseInt((String) request.getSession()
.getAttribute(\"essayId\")) + \")\";//保存图片的信息到数据库
int length = dbConn.executeUpdate(sql);
if (length == 0) {
throw new SQLException(\"inserting data failed！\");
}
//retrieve the file data
ByteArrayOutputStream baos = new ByteArrayOutputStream();
InputStream stream = file.getInputStream();
if (!writeFile) {
//only write files out that are less than 1MB
if (file.getFileSize() < (4 * 1024000)) {
byte[] buffer = new byte[8192];
int bytesRead = 0;
while ((bytesRead = stream.read(buffer, 0, 8192)) != -1) {
baos.write(buffer, 0, bytesRead);
}
data = new String(baos.toByteArray());
} else {
data = new String(
\"The file is greater than 4MB, \"
+ \" and has not been written to stream.\"
+ \" File Size: \"
+ file.getFileSize()
+ \" bytes. This is a\"
+ \" limitation of this particular web application, hard-coded\"
+ \" in org.apache.struts.webapp.upload.UploadAction\");
}
} else {
//write the file to the file specified
String filePath = GetRealPath.getPath() + \"photo/\"
+ dateStr + \".jpg\";
OutputStream bos = new FileOutputStream(filePath);
//request.getSession().removeAttribute(\"essayId\");
//Logger.println(sql);
int bytesRead = 0;
byte[] buffer = new byte[8192];
while ((bytesRead = stream.read(buffer, 0, 8192)) != -1) {
bos.write(buffer, 0, bytesRead);
}
bos.flush();
bos.close();
ImageTransform trans = new ImageTransform();
try {
trans.init(GetRealPath.getPath() + \"photo\", GetRealPath
.getPath()
+ \"photo\", dateStr, dateStr, \"jpg\", \"jpeg\");
trans.CreateThumbnail();//转换图像，生成微缩图
data = dateStr + \".jpg\";
new HtmlWriter().write(\"dynnews\", (String) request
.getSession().getAttribute(\"essayId\"));//生成相应静态页
response.sendRedirect(\"admin/display.jsp?text=\" + text
+ \"&fileName=\" + fileName + \"&size=\" + size
+ \"&data=\" + data + \"&contentType=\"
+ contentType);
} catch (Exception ex) {
Logger.println(ex);
}
}
//close the stream
stream.close();
//destroy the temporary file created
file.destroy();
} catch (FileNotFoundException fnfe) {
Logger.println(fnfe);
return null;
} catch (IOException ioe) {
Logger.println(ioe);
return null;
} catch (SQLException ex) {
Logger.println(ex);
} catch (IllegalArgumentException ex) {
Logger.println(ex);
} finally {
if (dbConn != null) {
dbConn.close();
}
}
}
return null;
}
}
