📄 shadowedtext.java
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package com.fi;
import java.io.IOException;
import java.io.PrintWriter;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
public class ShadowedText extends HttpServlet {
/**
* Constructor of the object.
*/
public ShadowedText() {
super();
}
/**
* Destruction of the servlet. <br>
*/
public void destroy() {
super.destroy(); // Just puts "destroy" string in log
// Put your code here
}
/**
* The doGet method of the servlet. <br>
*
* This method is called when a form has its tag value method equals to get.
*
* @param request the request send by the client to the server
* @param response the response send by the server to the client
* @throws ServletException if an error occurred
* @throws IOException if an error occurred
*/
public void doGet(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
String wantsList=request.getParameter("showList");
if(wantsList!=null){showFontList(response);}
else
{
String message= request.getParameter("message");
if((message==null)||(message.length()==0)){message="Missing 'message' parameter";}
String fontName= request.getParameter("fontName");
if((fontName==null)||(fontName.length()==0)){fontName="Serif";}
String fontSizeString=request.getParameter("fontSize");
int fontSize;
try
{
fontSize=Integer.parseInt(fontSizeString);
}
catch(NumberFormatException nef)
{
fontSize=90;
}
response.setContentType("text/html");
PrintWriter out=response.getWriter();
out.println("do"+message+fontName+fontSize);
if(message.trim().equals("华文中宋"))
out.println("true");
else
out.println("false");//上面代码的结果是：do华文中宋华文中宋90
response.setContentType("image/jpeg");
MessageImage.writeJPEG(
MessageImage.makeMessageImage(message, fontName, fontSize),
response.getOutputStream());
}
}
private void showFontList(HttpServletResponse response)throws IOException
{
response.setContentType("text/html");
response.setCharacterEncoding("GBK");
PrintWriter out=response.getWriter();
out.println("<html>");
out.println("<head><title>List</title></head>");
out.println("<body>");
out.println("<ul>");
String[] fontNames=MessageImage.getFontNames();
for(int i=0;i<fontNames.length;i++){
out.println("<li>"+fontNames[i]);
}
out.println("</ul>");
out.println("</body>");
out.println("</html>");
}
private static final long serialVersionUID = 1L;
}
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