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📄 write_jsp.java

📁 本系统用java+Mysql技术
💻 JAVA
字号:
package org.apache.jsp.message;

import javax.servlet.*;
import javax.servlet.http.*;
import javax.servlet.jsp.*;
import java.util.*;

public final class write_jsp extends org.apache.jasper.runtime.HttpJspBase
    implements org.apache.jasper.runtime.JspSourceDependent {


    //\u4E00\u4E9B\u5E38\u7528\u7684\u51FD\u6570
    int maxMessage=100;//\u670D\u52A1\u5668\u8BB0\u5F55\u7684\u6700\u5927\u4FE1\u606F\u6570
    int lessMessage=50;//\u8D85\u8FC7\u6700\u5927\u4FE1\u606F\u6570\u540E\uFF0C\u4FDD\u7559\u7684\u4FE1\u606F\u6570

    public String getStr(String str)//\u8F6C\u6362\u5B57\u7B26\uFF0C\u907F\u514D\u8F93\u51FA\u4E71\u7801
    {
        try {
            String temp_p=str;
            byte[] temp_t=temp_p.getBytes("ISO8859-1");
            String temp=new String(temp_t);
            return temp;
        } catch(Exception e) {
            return null;
        }

    }

    public void addToChatmsg(String msg){//\u589E\u52A0\u4E00\u6761\u804A\u5929\u8BB0\u5F55
        Vector chatmsg;
        if(getServletContext().getAttribute("chatmsg")==null){
            chatmsg=new Vector();
        } else{
            chatmsg=(Vector)getServletContext().getAttribute("chatmsg");
        }
        chatmsg.addElement(msg);
        if(chatmsg.size()>maxMessage){
            for(int j=chatmsg.size()-lessMessage-1;j>=0;j--)
                chatmsg.removeElementAt(j);
        }
        getServletContext().setAttribute("chatmsg",chatmsg);
    }

    public boolean isOnline(String username){//\u5224\u65AD\u7528\u6237\u662F\u5426\u5728\u7EBF
        if(getServletContext().getAttribute(username)==null){
            return false;
        }
        return true;
    }


String writeto=null;
String title=null;

  private static java.util.Vector _jspx_dependants;

  static {
    _jspx_dependants = new java.util.Vector(1);
    _jspx_dependants.add("/message/../Common.jsp");
  }

  public java.util.List getDependants() {
    return _jspx_dependants;
  }

  public void _jspService(HttpServletRequest request, HttpServletResponse response)
        throws java.io.IOException, ServletException {

    JspFactory _jspxFactory = null;
    PageContext pageContext = null;
    HttpSession session = null;
    ServletContext application = null;
    ServletConfig config = null;
    JspWriter out = null;
    Object page = this;
    JspWriter _jspx_out = null;
    PageContext _jspx_page_context = null;


    try {
      _jspxFactory = JspFactory.getDefaultFactory();
      response.setContentType("text/html; charset=gb2312");
      pageContext = _jspxFactory.getPageContext(this, request, response,
      			null, true, 8192, true);
      _jspx_page_context = pageContext;
      application = pageContext.getServletContext();
      config = pageContext.getServletConfig();
      session = pageContext.getSession();
      out = pageContext.getOut();
      _jspx_out = out;

      out.write('\r');
      out.write('\n');
      out.write('\r');
      out.write('\n');
      out.write('\r');
      out.write('\n');
      chatweb.conn db = null;
      synchronized (_jspx_page_context) {
        db = (chatweb.conn) _jspx_page_context.getAttribute("db", PageContext.PAGE_SCOPE);
        if (db == null){
          db = new chatweb.conn();
          _jspx_page_context.setAttribute("db", db, PageContext.PAGE_SCOPE);
        }
      }
      out.write("\r\n");
      out.write("<html>\r\n");
      out.write("<head>\r\n");
      out.write("<title>\r\n");
      out.write("write\r\n");
      out.write("</title>\r\n");
      out.write("<link href=\"../chat.css\" rel=\"stylesheet\" type=\"text/css\">\r\n");
      out.write("<meta http-equiv=\"Content-Type\" content=\"text/html; charset=gb2312\">\r\n");
      out.write("<script language=\"JavaScript\" type=\"text/JavaScript\">\r\n");
      out.write("<!--\r\n");
      out.write("function MM_goToURL() { //v3.0\r\n");
      out.write("  var i, args=MM_goToURL.arguments; document.MM_returnValue = false;\r\n");
      out.write("  for (i=0; i<(args.length-1); i+=2) eval(args[i]+\".location='\"+args[i+1]+\"'\");\r\n");
      out.write("}\r\n");
      out.write("//-->\r\n");
      out.write("</script>\r\n");
      out.write("</head>\r\n");
      out.write("<body bgcolor=\"#FFF7DD\">\r\n");
      out.write('\r');
      out.write('\n');

if(request.getMethod().toUpperCase().equals("POST")){
    String toUser=request.getParameter("receiver");
    String fromUser=session.getAttribute("username").toString();
    String ti=request.getParameter("ttitle");
    ti=new String(ti.replaceAll("<","&lt;"));
    ti=new String(ti.replaceAll(">","&gt;"));
    String content=request.getParameter("content");
    content=new String(content.replaceAll("<","&lt;"));
    content=new String(content.replaceAll(">","&gt;"));
    if(db.addMsg(fromUser,toUser,content,ti)){
      out.write("\r\n");
      out.write("\t\t<script language=\"JavaScript\" type=\"text/JavaScript\">\r\n");
      out.write("\t\twindow.alert(\"信息发送成功\");\r\n");
      out.write("\t\tlocation.href=\"message.jsp\";\r\n");
      out.write("\t\t</script>\r\n");
      out.write("\t\t");
}
	else{
      out.write("\r\n");
      out.write("\t<script language=\"JavaScript\" type=\"text/JavaScript\">\r\n");
      out.write("\twindow.alert(\"发送失败,请检查接收方\");\r\n");
      out.write("\t</script>\r\n");
      out.write("\t");
}
}
if(request.getMethod().toUpperCase().equals("GET")){
    writeto=getStr(request.getParameter("writeto"));
    title="Re: "+getStr(request.getParameter("title"));
}
if(writeto==null){
writeto=new String("");
title=new String("");
}

      out.write("\r\n");
      out.write("<div align=\"center\">\r\n");
      out.write("  <form name=\"form1\" method=\"post\" action=\"\">\r\n");
      out.write("    <table width=\"80%\" border=\"0\" cellspacing=\"1\" class=\"mytable\">\r\n");
      out.write("      <tr bgcolor=\"#FFF7DD\">\r\n");
      out.write("        <td nowrap>\r\n");
      out.write("          <div align=\"left\">主题:</div></td>\r\n");
      out.write("        <td width=\"90%\">\r\n");
      out.write("          <input name=\"ttitle\" type=\"text\" id=\"title\" value=\"");
      out.print(title);
      out.write("\">\r\n");
      out.write("        </td>\r\n");
      out.write("      </tr>\r\n");
      out.write("      <tr bgcolor=\"#FFF7DD\">\r\n");
      out.write("        <td nowrap>\r\n");
      out.write("          <div align=\"left\">接收人:</div></td>\r\n");
      out.write("        <td>\r\n");
      out.write("          <input name=\"receiver\" type=\"text\" id=\"receiver\" value=\"");
      out.print(writeto);
      out.write("\"></td>\r\n");
      out.write("      </tr>\r\n");
      out.write("      <tr bgcolor=\"#FFF7DD\">\r\n");
      out.write("        <td nowrap>\r\n");
      out.write("          <div align=\"left\">内容:</div></td>\r\n");
      out.write("        <td>\r\n");
      out.write("          <textarea name=\"content\" cols=\"50\" rows=\"6\" id=\"content\"></textarea></td>\r\n");
      out.write("      </tr>\r\n");
      out.write("      <tr bgcolor=\"#FFF7DD\">\r\n");
      out.write("        <td colspan=\"2\" nowrap>\r\n");
      out.write("          <div align=\"center\">\r\n");
      out.write("            <input type=\"submit\" name=\"Submit\" value=\"提交\">\r\n");
      out.write("            <input type=\"reset\" name=\"Submit3\" value=\"重置\">\r\n");
      out.write("            <input name=\"Submit2\" type=\"button\" onClick=\"MM_goToURL('parent','message.jsp');return document.MM_returnValue\" value=\"取消\">\r\n");
      out.write("          </div></td>\r\n");
      out.write("      </tr>\r\n");
      out.write("    </table>\r\n");
      out.write("  </form>\r\n");
      out.write("</div>\r\n");
      out.write("</body>\r\n");
      out.write("</html>\r\n");
    } catch (Throwable t) {
      if (!(t instanceof SkipPageException)){
        out = _jspx_out;
        if (out != null && out.getBufferSize() != 0)
          out.clearBuffer();
        if (_jspx_page_context != null) _jspx_page_context.handlePageException(t);
      }
    } finally {
      if (_jspxFactory != null) _jspxFactory.releasePageContext(_jspx_page_context);
    }
  }
}

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