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📄 grade_jsp.java

📁 vb+java实现的图书管理系统
💻 JAVA
字号:
🔍 
package org.apache.jsp;

import javax.servlet.*;
import javax.servlet.http.*;
import javax.servlet.jsp.*;
import java.util.*;
import com.bean.util.DbConn;

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

  private static final JspFactory _jspxFactory = JspFactory.getDefaultFactory();

  private static java.util.List _jspx_dependants;

  private javax.el.ExpressionFactory _el_expressionfactory;
  private org.apache.AnnotationProcessor _jsp_annotationprocessor;

  public Object getDependants() {
    return _jspx_dependants;
  }

  public void _jspInit() {
    _el_expressionfactory = _jspxFactory.getJspApplicationContext(getServletConfig().getServletContext()).getExpressionFactory();
    _jsp_annotationprocessor = (org.apache.AnnotationProcessor) getServletConfig().getServletContext().getAttribute(org.apache.AnnotationProcessor.class.getName());
  }

  public void _jspDestroy() {
  }

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

    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 {
      response.setContentType("text/html;charset=utf-8");
      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');

if(session.getAttribute("user")==null||!session.getAttribute("role").toString().equals("teacher")){
response.sendRedirect("login.jsp");
return;
}
else{
}
      out.write('\r');
      out.write('\n');

String path = request.getContextPath();
String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";

      out.write("\r\n");
      out.write("\r\n");
      out.write("<!DOCTYPE HTML PUBLIC \"-//W3C//DTD HTML 4.01 Transitional//EN\">\r\n");
      out.write("<html>\r\n");
      out.write("  <head>\r\n");
      out.write("    <base href=\"");
      out.print(basePath);
      out.write("\">\r\n");
      out.write("    \r\n");
      out.write("    <title>grade online page</title>\r\n");
      out.write("    \r\n");
      out.write("\t<meta http-equiv=\"pragma\" content=\"no-cache\">\r\n");
      out.write("\t<meta http-equiv=\"cache-control\" content=\"no-cache\">\r\n");
      out.write("\t<meta http-equiv=\"expires\" content=\"0\">    \r\n");
      out.write("\t<meta http-equiv=\"keywords\" content=\"keyword1,keyword2,keyword3\">\r\n");
      out.write("\t<meta http-equiv=\"description\" content=\"This is my page\">\r\n");
      out.write("\t<meta http-equiv=\"Content-Type\" content=\"text/html;charset=utf-8\"> \r\n");
      out.write("\t<!--\r\n");
      out.write("\t<link rel=\"stylesheet\" type=\"text/css\" href=\"styles.css\">\r\n");
      out.write("\t-->\r\n");
      out.write("\t<script type=\"text/javascript\" charset=\"utf-8\">\r\n");
      out.write("\t\tfunction getResult(stateVal) {\r\n");
      out.write("\t\t\tif(stateVal==\"\"){\r\n");
      out.write("\t\t\t\t//alert(\"所选课程暂无授课班级\");\r\n");
      out.write("\t\t\t}\r\n");
      out.write("\t\t\telse{\r\n");
      out.write("\t\t\t\tvar url = \"");
      out.print(basePath);
      out.write("FirstAjax?cour_id=\"+stateVal;\r\n");
      out.write("\t\t\t\tif (window.XMLHttpRequest) {\r\n");
      out.write("\t\t\t\t\treq = new XMLHttpRequest();\r\n");
      out.write("\t\t\t\t}\r\n");
      out.write("\t\t\t\telse if (window.ActiveXObject) {\r\n");
      out.write("\t\t\t\t\treq = new ActiveXObject(\"Microsoft.XMLHTTP\");\r\n");
      out.write("\t\t\t\t}\r\n");
      out.write("\t\t\t\tif(req){\r\n");
      out.write("\t\t\t\t\treq.open(\"GET\",url, true);\r\n");
      out.write("\t\t\t\t\treq.onreadystatechange = complete;\r\n");
      out.write("\t\t\t\t\treq.send(null);\r\n");
      out.write("\t\t\t\t}\t\t\t\t\r\n");
      out.write("\t\t\t}\r\n");
      out.write("\t\t}\r\n");
      out.write("\t\r\n");
      out.write("\t\tfunction info(class_name,cour_id,zypc_id) {\r\n");
      out.write("\t\t\tif(class_name==\"请选择\"||class_name==\"\" ||cour_id==\"\"||zypc_id==\"\"){}\r\n");
      out.write("\t\t\telse{\r\n");
      out.write("\t\t\t\tvar url = \"");
      out.print(basePath);
      out.write("Exinfo?class_name=\"+class_name+\"&cour_id=\"+cour_id+\"&zypc_id=\"+zypc_id;\r\n");
      out.write("\t\t\t\tif (window.XMLHttpRequest) {\r\n");
      out.write("\t\t\t\t\treq = new XMLHttpRequest();\r\n");
      out.write("\t\t\t\t}else if (window.ActiveXObject) {\r\n");
      out.write("\t\t\t\t\treq = new ActiveXObject(\"Microsoft.XMLHTTP\");\r\n");
      out.write("\t\t\t\t}\r\n");
      out.write("\t\t\t\tif(req){\r\n");
      out.write("\t\t\t\t\treq.open(\"GET\",url, true);\r\n");
      out.write("\t\t\t\t\treq.onreadystatechange = stu_score;\r\n");
      out.write("\t\t\t\t\treq.send(null);\r\n");
      out.write("\t\t\t\t}\r\n");
      out.write("\t\t\t}\r\n");
      out.write("\t\t}\r\n");
      out.write("\t\r\n");
      out.write("\t\tfunction stu_score()\r\n");
      out.write("\t\t{\r\n");
      out.write("\t\t\tif (req.readyState == 4) {\r\n");
      out.write("\t\t\t\tif (req.status == 200) {\r\n");
      out.write("\t\t\t\t\tvar strhtml=\"\";\r\n");
      out.write("\t\t\t\t\tvar stu_name=req.responseXML.getElementsByTagName(\"stu_name\");\r\n");
      out.write("\t\t\t\t\tvar stu_id=req.responseXML.getElementsByTagName(\"stu_id\");\r\n");
      out.write("\t\t\t\t\tvar stu_score=req.responseXML.getElementsByTagName(\"stu_score\");\r\n");
      out.write("\t\t\t\t\tvar id=new Array();\r\n");
      out.write("\t\t\t\t\tvar name=new Array();\r\n");
      out.write("\t\t\t\t\tvar score=new Array();\r\n");
      out.write("\t\t\t\t\tstrhtml+=\"<table style='font-size:12px;margin:10px' ><tr><td width=80px>学号</td><td width=50px>姓名</td><td width=30px>成绩</td></tr>\";\r\n");
      out.write("\t\t\t\t\tfor(var i=0;i<stu_id.length;i++){\r\n");
      out.write("\t\t\t\t\t\t\tid[i]=stu_id[i].firstChild.data;\r\n");
      out.write("\t\t\t\t\t\t\tname[i]=stu_name[i].firstChild.data;\r\n");
      out.write("\t\t\t\t\t\t\tscore[i]=stu_score[i].firstChild.data;\r\n");
      out.write("\t\t\t\t\t\t\tstrhtml+=\"<tr><td>\"+id[i]+\"</td><td>\" +name[i]+\"</td><td><input type=text name=stu\"+i+\" value=\"+score[i]+\" id=stu\"+i+\" size=10  onChange='test(this.value,this.id);' /></td></tr>\";\r\n");
      out.write("\t\t\t\t\t}\r\n");
      out.write("\t\t\t\t\tstrhtml+=\"</table>\";\r\n");
      out.write("\t\t\t\t\t//alert(strhtml);\r\n");
      out.write("\t\t\t\t\tdocument.all.stu_info.innerHTML=strhtml;\r\n");
      out.write("\t\t\t\t}\r\n");
      out.write("\t\t\t}\r\n");
      out.write("\t\t}\r\n");
      out.write("\t\tfunction complete(){\r\n");
      out.write("\t\t\tif (req.readyState == 4) {\r\n");
      out.write("\t\t\t\tif (req.status == 200) {\r\n");
      out.write("\t\t\t\t\tvar class_name = req.responseXML.getElementsByTagName(\"class_name\");\r\n");
      out.write("\t\t\t\t\tvar str=new Array();\r\n");
      out.write("\t\t\t\t\tif(class_name==null){}\r\n");
      out.write("\t\t\t\t\telse{\r\n");
      out.write("\t\t\t\t\t\tfor(var i=0;i<class_name.length;i++){\r\n");
      out.write("\t\t\t\t\t\t\tstr[i]=class_name[i].firstChild.data;\r\n");
      out.write("\t\t\t\t\t\t}\r\n");
      out.write("\t\t\t\t\t\tbuildSelect(str,document.getElementById(\"class_name\"));\r\n");
      out.write("\t\t\t\t\t}\r\n");
      out.write("\t\t\t\t\tvar zy_name=req.responseXML.getElementsByTagName(\"zy_name\");\r\n");
      out.write("\t\t\t\t\tvar zy_id=req.responseXML.getElementsByTagName(\"zy_id\");\r\n");
      out.write("\t\t\t\t\tvar zyid=new Array();\r\n");
      out.write("\t\t\t\t\tvar zyname=new Array();\r\n");
      out.write("\t\t\t\t\tdocument.all.zy_name.options.length=0;\r\n");
      out.write("\t\t\t\t\tfor(var i=0;i<zy_id.length;i++){\r\n");
      out.write("\t\t\t\t\t\t\tzyid[i]=zy_id[i].firstChild.data;\r\n");
      out.write("\t\t\t\t\t\t\tzyname[i]=zy_name[i].firstChild.data;\r\n");
      out.write("\t\t\t\t\t\t\tdocument.all.zy_name.options.add(new Option(zyname[i],zyid[i]));\r\n");
      out.write("\t\t\t\t\t}\r\n");
      out.write("\t\t\t\t}\r\n");
      out.write("\t\t\t}\r\n");
      out.write("\t\t}\r\n");
      out.write("\t\t\r\n");
      out.write("\t\tfunction buildSelect(str,sel) {\r\n");
      out.write("\t\t\tsel.options.length=0;\r\n");
      out.write("\t\t\tdocument.all.class_name.options.add(new Option('请选择','请选择'));\r\n");
      out.write("\t\t\t\r\n");
      out.write("\t\t\tfor(var i=0;i<str.length;i++)\r\n");
      out.write("\t\t\t {\r\n");
      out.write("\t\t\t\tdocument.all.class_name.options.add(new Option(str[i],str[i]));\r\n");
      out.write("\t\t\t}\r\n");
      out.write("\t\t}\r\n");
      out.write("\t</script>\r\n");
      out.write("\t<script type=\"text/javascript\">\r\n");
      out.write("\t\tfunction check_null()\r\n");
      out.write("\t\t{\r\n");
      out.write("\t\t\tif(document.all.cour_id.value==\"\")\r\n");
      out.write("\t\t\t{\r\n");
      out.write("\t\t\t\talert(\"请选择课程！\");\r\n");
      out.write("\t\t\t\treturn false;\r\n");
      out.write("\t\t\t}\r\n");
      out.write("\t\t\tif(document.all.zy_name.value==\"\")\r\n");
      out.write("\t\t\t{\r\n");
      out.write("\t\t\t\talert(\"请选择作业名称！\");\r\n");
      out.write("\t\t\t\treturn false;\r\n");
      out.write("\t\t\t}\r\n");
      out.write("\t\t\tif(document.all.class_name.value==\"请选择\")\r\n");
      out.write("\t\t\t{\r\n");
      out.write("\t\t\t\talert(\"请选择班级！\");\r\n");
      out.write("\t\t\t\treturn false;\r\n");
      out.write("\t\t\t}\r\n");
      out.write("\t\t}\r\n");
      out.write("\t\tfunction test(score,stu_id)\r\n");
      out.write("\t\t{\r\n");
      out.write("\t\t\t//alert(aaa);\r\n");
      out.write("\t\t\tif(score==\"\")\r\n");
      out.write("\t\t\t{\r\n");
      out.write("\t\t\t\talert(\"分数不能为空！\");\r\n");
      out.write("\t\t\t\t//document.all.stu0.focus();\r\n");
      out.write("\t\t\t\treturn false;\r\n");
      out.write("\t\t\t}\r\n");
      out.write("\t\t\tif(!IsNum(score,stu_id))\r\n");
      out.write("\t\t\t{\t\r\n");
      out.write("\t\t\t\talert(\"请输入数字!\");\r\n");
      out.write("\t\t\t\teval(\"document.all.\"+stu_id).value=\"\";\r\n");
      out.write("\t\t\t\tdocument.all.elements[stu_id].focus();\r\n");
      out.write("\t\t\t\treturn false;\r\n");
      out.write("\t\t\t}\r\n");
      out.write("\t\t}\r\n");
      out.write("\t\tfunction IsNum(num)\r\n");
      out.write("\t\t{ \r\n");
      out.write("\t\t\r\n");
      out.write("\t\t\t//var reNum=/^\\d*$/; \r\n");
      out.write("\t\t\tvar reNum=/^[-\\+]?\\d+(\\.\\d+)?$/\r\n");
      out.write("\t\t\treturn(reNum.test(num)); \r\n");
      out.write("\t\t} \r\n");
      out.write("\t\t\r\n");
      out.write("\t</script>\r\n");
      out.write("  </head>\r\n");
      out.write("  \t");

	DbConn conn=new DbConn();
	String th_id=session.getAttribute("user").toString();
	String sql="select b.cour_id,b.cour_name from th_course a,courses b where a.th_id='"+th_id+"' and a.cour_id=b.cour_id";
	String[][] cour_info=conn.getData(sql);
	
      out.write("\r\n");
      out.write("  <body>\r\n");
      out.write("\t");
if(session.getAttribute("user")==null)
	{
		System.out.print("没有存在该用户");
		out.print("请先登录");
		request.getRequestDispatcher("login.jsp").forward(request,response);
		return;
	}
	
      out.write("\r\n");
      out.write("\t<form action=\"");
      out.print(basePath);
      out.write("Gradeservlet\" name=\"gradeform\" method=\"post\">\r\n");
      out.write("\t\t<h2>在线评分</h2>\r\n");
      out.write("\t\t<div class=\"articles\">\r\n");
      out.write("\t\t<ul style=\"list-style:none\">\r\n");
      out.write("\t\t");
if(cour_info==null){
			out.println("暂无授课班级");
		}
		else{ 
      out.write("\r\n");
      out.write("\t\t\t<li>请选择课程：\r\n");
      out.write("\t\t\t\t<select name=\"cour_id\" onChange=\"getResult(this.value);info(gradeform.class_name.value,this.value,gradeform.zy_name.value)\">\r\n");
      out.write("\t\t\t\t\t<option value=\"\">请选择</option>\r\n");
      out.write("\t\t\t\t\t");
 
					for(int i=0;i<cour_info.length;i++)
					{
						out.print("<option value="+cour_info[i][0]+">"+cour_info[i][1]+"</option>");
					}
					
      out.write("\r\n");
      out.write("\t\t\t\t</select>\r\n");
      out.write("\t\t\t</li><br><br>\r\n");
      out.write("\t\t\t<li>请选择作业：\r\n");
      out.write("\t\t\t<select id=\"zy_name\" name=\"zy_name\"  style=\"width:200px\"  onChange=\"info(gradeform.class_name.value,gradeform.cour_id.value,this.value)\">\r\n");
      out.write("\t\t\t\t<option value=\"\">请选择</option>\r\n");
      out.write("\t\t\t</select></li><br><br>\r\n");
      out.write("\t\t\t<li>请选择班级：\r\n");
      out.write("\t\t\t<select id=\"class_name\" name=\"class_name\" style=\"width:200px\" onChange=\"info(this.value,gradeform.cour_id.value,gradeform.zy_name.value)\">\r\n");
      out.write("\t\t\t\t<option value=\"\">请选择</option>\r\n");
      out.write("\t\t\t</select></li><br><br>\r\n");
      out.write("\t\t\t<li><div style=\"margin-left:100px\"><input type=\"submit\" name=\"submit\" value=\"提交\" onClick=\"return check_null();\"><input type=\"reset\" name=\"reset\" value=\"重置\"></li><br><br>\r\n");
      out.write("\t\t");
} 
      out.write("\r\n");
      out.write("\t\t</ul>\r\n");
      out.write("\t\t</div>\r\n");
      out.write("\t\t<h2>学生成绩</h2>\r\n");
      out.write("\t\t<div name=stu_info id=stu_info>\r\n");
      out.write("\t\t\t</div>\r\n");
      out.write("\t</form>\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)
          try { out.clearBuffer(); } catch (java.io.IOException e) {}
        if (_jspx_page_context != null) _jspx_page_context.handlePageException(t);
      }
    } finally {
      _jspxFactory.releasePageContext(_jspx_page_context);
    }
  }
}

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