?? uploadservlet.java
字號:
package myFileUpload;
import javax.servlet.*;
import javax.servlet.http.*;
import com.oreilly.servlet.MultipartRequest;
import com.oreilly.servlet.multipart.DefaultFileRenamePolicy;
import java.util.Enumeration;
public class UploadServlet extends HttpServlet {
private String webTempPath;
//單個文件大小限制為5M Bytes
private final int maxPostSize = 5 * 1024 * 1024 ;
public void init(){
//指定上傳文件的存儲目錄為Web應用目錄下的uploaded子目錄
webTempPath = getServletContext().getRealPath("/") + "uploaded";
}
public void doPost(HttpServletRequest request, HttpServletResponse response)
throws ServletException, java.io.IOException {
// 聲明上傳文件名所使用的編碼，默認值為 ISO-8859-1，
// 若改為GB2312則支持中文名
String enCoding = "GB2312";
// 產生一個新的MultipartRequest 對象，multi
MultipartRequest mpr = new MultipartRequest(request, webTempPath, maxPostSize, enCoding);
Enumeration fileenum = mpr.getFileNames();
Enumeration filesdc = mpr.getParameterNames();
response.setContentType("text/html");
//支持中文輸出內容
response.setCharacterEncoding("GB2312");
java.io.PrintWriter out = response.getWriter();
out.println("<html>");
out.println("<head>");
out.println("<title>文件上傳處理</title>");
out.println("</head>");
out.println("<body>");
for (int i = 1; fileenum.hasMoreElements();i++){
//out.println("The name of uploaded file " + i +" is: " + mpr.getFilesystemName((String) fileenum.nextElement()) + "<br><br>");
String name = (String)fileenum.nextElement();
String dc = (String)filesdc.nextElement();
String FileName = mpr.getFilesystemName(name);
String ContentType = mpr.getContentType(name);
String Description = mpr.getParameter(dc);
if (FileName != null)
out.println("<font color='red'>您上傳的第" + i +
"個文件：</font><br>"+
"文件名稱為：" + FileName +
"<br>文件類型為：" + ContentType +
"<br>文件的描述：" + Description +
"<br><br>");
}
out.println("</body>");
out.println("</html>");
}
public void doGet(HttpServletRequest request, HttpServletResponse response)
throws ServletException, java.io.IOException {
throw new ServletException("GET method used with " + getClass().getName()+": POST method required.");
}
}
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