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在幾個頁面間利用jsp servlet 進行對成績的錄入,刪除,修改 用Eclipse開發的

代碼片段和文件信息
package?test;
import?javax.servlet.ServletConfig;
import?javax.servlet.ServletException;
import?javax.servlet.http.HttpServlet;
import?javax.servlet.http.HttpServletRequest;
import?javax.servlet.http.HttpServletResponse;
import?java.util.*;
import?javax.servlet.http.*;
public?class?DispSvl?extends?HttpServlet?{
??
public?void?init(ServletConfig?config)throws?ServletException{
?super.init(config);
}
public?void?doPost(HttpServletRequest?requestHttpServletResponse?response)throws?ServletException{
try{
request.setCharacterEncoding(“gb2312“);
response.setCharacterEncoding(“gb2312“);
}catch(Exception?e){
e.printStackTrace();
}
String?rs;
ArrayList?b?=?new?ArrayList();
HttpSession?session=request.getSession();
String?aa=null?bb=null?Rs=null;
if?(request.getParameter(“course“)?!=?null
&&?request.getParameter(“textfield“)?!=?null)?{
aa?=?request.getParameter(“course“).toString();
bb?=?request.getParameter(“textfield“).toString();
}
rs?=?aa?+?“?“?+?bb;
Rs?=?rs;
if?(session.getAttribute(“Array“)?!=?null)?{
System.out.println(“s=====“
+?session.getAttribute(“Array“).getClass());
b?=?(ArrayList)?session.getAttribute(“Array“);
}else?if(request.getAttribute(“b“)!=null){b=(ArrayList)request.getAttribute(“b“);}
if?(b.size()?==?0?||?request.getParameter(“course“)?!=?null
||?request.getParameter(“textfield“)?!=?null)?{
b.add(Rs);
}
int?j?=?0;
String?abc?=?null;
if?(request.getParameter(“array“)?!=?null)?{
abc?=?(request.getParameter(“array“));
}
if?(abc?!=?null?&&?b?!=?null)?{
System.out.println(abc.length());
String[]?re?=?request.getParameter(“array“).split(““);
for?(int?n?=?0;?j?
System.out.println(“b.size?=?“?+?b.size());
//b.remove(l);
int?l?=?Integer.parseInt(re[n].toString());
System.out.println(“l=======“?+?re[n]);
b.remove(l);
}
}
String?I?=?request.getParameter(“i“);
int?index1?=?-1;
if?(I?!=?null)?{
index1?=?Integer.parseInt(I);
}
if?(index1?>?-1)?{
b.set(index1?request.getParameter(“RS“).toString());
}
session.setAttribute(“rs“?b);
session.setAttribute(“name“?session.getAttribute(“name“));
request.setAttribute(“b“?b);
request.setAttribute(“n“?2);
System.out.println(b);
try{
?request.getRequestDispatcher(“disp.jsp“).forward(request?response);}
catch(Exception?e){
e.printStackTrace();
}
}
}
?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----
?????文件????????631??2009-08-03?09:57??mark\.classpath
?????文件???????1037??2009-07-23?11:39??mark\.project
?????文件????????454??2009-07-23?11:39??mark\.settings\.jsdtscope
?????文件????????330??2009-07-23?11:39??mark\.settings\org.eclipse.jdt.core.prefs
?????文件????????364??2009-07-23?11:39??mark\.settings\org.eclipse.jst.common.project.facet.core.prefs
?????文件????????414??2009-07-23?11:39??mark\.settings\org.eclipse.wst.common.component
?????文件????????320??2009-07-23?11:39??mark\.settings\org.eclipse.wst.common.project.facet.core.xm
?????文件?????????49??2009-07-23?11:39??mark\.settings\org.eclipse.wst.jsdt.ui.superType.container
?????文件??????????6??2009-07-23?11:39??mark\.settings\org.eclipse.wst.jsdt.ui.superType.name
?????目錄??????????0??2009-07-23?11:39??mark\.settings
?????目錄??????????0??2009-08-03?09:57??mark\build
?????文件???????2461??2009-08-05?12:28??mark\src\test\DispSvl.java
?????文件???????1553??2009-08-05?11:02??mark\src\test\LuluSvl.java
?????文件???????1774??2009-08-05?13:47??mark\src\test\ModifySvl.java
?????文件????????998??2009-08-05?17:11??mark\src\test\MyServlet.java
?????目錄??????????0??2009-08-04?14:43??mark\src\test
?????目錄??????????0??2009-08-03?09:59??mark\src
?????文件????????198??2009-07-28?17:20??mark\WebContent\2.css
?????文件???????3166??2009-07-28?17:04??mark\WebContent\2.gif
?????文件???????5153??2009-08-02?16:35??mark\WebContent\26679347a25542ac9a7f9802dbd5de90.jpeg
?????文件????????911??2009-07-29?15:25??mark\WebContent\3.html
?????文件?????140374??2009-08-02?16:36??mark\WebContent\3b6b0a3acd724b3888e9ca9c5cc59991.jpeg
?????文件?????110776??2009-07-28?15:43??mark\WebContent\47153aeb6876d2a7d2e5a.jpeg
?????文件??????77721??2009-08-02?16:36??mark\WebContent\bae8394b20244fefa29124badaaf8afd.jpeg
?????文件???????3254??2009-08-05?11:54??mark\WebContent\disp.jsp
?????文件??????86497??2009-07-23?10:02??mark\WebContent\header_bg.jpg
?????文件????????183??2009-08-03?17:52??mark\WebContent\JS\lg.js
?????文件????????946??2009-08-05?11:26??mark\WebContent\JS\lr.js
?????文件???????1075??2009-08-05?13:49??mark\WebContent\JS\modi.js
?????文件???????1546??2009-08-05?13:10??mark\WebContent\JS\result.js
............此處省略21個文件信息
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