alterclassbig_jsp.java

这是一个我刚学的时候开发的关于JSP方面的小实例,希望能对初学者有帮助.

package org.apache.jsp;

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

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

  private static java.util.Vector _jspx_dependants;

  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');
int id=Integer.parseInt(request.getParameter("id")); 
      out.write('\r');
      out.write('\n');
String name=(String)request.getParameter("name"); 
      out.write('\r');
      out.write('\n');
      hsjsp.ClassmanagerBean alter = null;
      synchronized (_jspx_page_context) {
        alter = (hsjsp.ClassmanagerBean) _jspx_page_context.getAttribute("alter", PageContext.PAGE_SCOPE);
        if (alter == null){
          alter = new hsjsp.ClassmanagerBean();
          _jspx_page_context.setAttribute("alter", alter, PageContext.PAGE_SCOPE);
        }
      }
      out.write("\r\n\r\n\r\n<script language=\"JavaScript\" type=\"text/JavaScript\">\r\nfunction checkBig()\r\n{\r\n  if (document.form1.BigClassName.value==\"\")\r\n  {\r\n    alert(\"大类名称不能为空！\");\r\n    document.form1.BigClassName.focus();\r\n    return false;\r\n  }\r\n}\r\n</script>\r\n<LINK href=\"images/css.css\" type=text/css rel=stylesheet>\r\n<table width=\"80%\" border=\"0\" cellpadding=\"0\" cellspacing=\"0\">\r\n  <tr>\r\n    <td align=\"center\" valign=\"top\"> <br>\r\n      <a href=\"classmanager.jsp\"><strong>产 品 类 别 设 置</strong></a> <br>\r\n      <form name=\"form1\" method=\"post\" action=\"chkclassadd.jsp\" onsubmit=\"return checkBig()\">\r\n        <table width=\"350\" border=\"0\" align=\"center\" cellpadding=\"0\" cellspacing=\"2\" class=\"border\">\r\n          <tr bgcolor=\"#999999\" class=\"title\">\r\n            <td height=\"25\" colspan=\"2\" align=\"center\"><strong>添加大类</strong></td>\r\n          </tr>\r\n          <tr bgcolor=\"#E3E3E3\" class=\"tdbg\">\r\n            <td width=\"126\" height=\"22\" bgcolor=\"#C0C0C0\"> <div align=\"right\"><strong>大类名称：</strong></div></td>\r\n            <td width=\"218\" bgcolor=\"#E3E3E3\">\r\n");
      out.write("              <input name=\"BigClassName\" type=\"text\" size=\"20\" maxlength=\"30\" value=\"");
      out.print(name);
      out.write("\">\r\n            </td>\r\n          </tr>\r\n          <tr bgcolor=\"#C0C0C0\" class=\"tdbg\">\r\n            <td height=\"22\" align=\"center\" bgcolor=\"#C0C0C0\">&nbsp; </td>\r\n            <td height=\"22\" align=\"center\" bgcolor=\"#E3E3E3\"> <div align=\"left\">\r\n\r\n                <input name=\"Add\" type=\"submit\" value=\" 保 存 \">\r\n              </div></td>\r\n          </tr>\r\n        </table>\r\n      </form></td>\r\n  </tr>\r\n</table>\r\n\r\n\r\n\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);
    }
  }
}