12.6 searchPerson.jsp
<%@ page language="java" import="java.util.*" pageEncoding="utf-8"%>
<%@ page import="java.sql.*" %>
<%@ page import="java.sql.Date" %>
<%@ page import="com.helloben.util.*" %>
<%!
public String forSQL(String sql){
return sql.replace("‘", "\\‘");
}
%>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<title>My JSP ‘searchPerson.jsp‘ starting page</title>
<meta http-equiv="pragma" content="no-cache">
<meta http-equiv="cache-control" content="no-cache">
<meta http-equiv="expires" content="0">
<meta http-equiv="keywords" content="keyword1,keyword2,keyword3">
<meta http-equiv="description" content="This is my page">
<!--
<link rel="stylesheet" type="text/css" href="styles.css">
-->
</head>
<body>
<%
request.setCharacterEncoding("UTF-8");
final int pageSize = 5;
int pageNum = 1;
try{
pageNum = new Integer(request.getParameter("pageNum"));
}catch(Exception e){}
String nameSearch = request.getParameter("name");
String sexSearch = request.getParameter("sex");
String englishNameSearch = request.getParameter("englishName");
String descriptionSearch = request.getParameter("description");
String whereClause = "";
// 模糊匹配
if(nameSearch!=null && nameSearch.trim().length()!=0){
if(whereClause.length() == 0)
whereClause += " name LIKE ‘%" + forSQL(nameSearch) + "%‘";
else
whereClause += " AND name LIKE ‘%" + forSQL(nameSearch) + "%‘";
}
// 精确匹配
if(sexSearch!=null && sexSearch.trim().length()!=0){
if(whereClause.length() == 0)
whereClause += " sex = ‘" + forSQL(sexSearch) + "‘ ";
else
whereClause += " AND sex = ‘" + forSQL(sexSearch) + "‘ ";
}
if(englishNameSearch!=null && englishNameSearch.trim().length()!=0){
if(whereClause.length() == 0)
whereClause += " english_name LIKE ‘%" + forSQL(englishNameSearch) + "%‘ ";
else
whereClause += " AND english_name LIKE ‘%" + forSQL(englishNameSearch) + "%‘ ";
}
if(descriptionSearch!=null && descriptionSearch.trim().length()!=0){
if(whereClause.length() == 0)
whereClause += " description LIKE ‘%" + forSQL(descriptionSearch) + "%‘ ";
else
whereClause += " AND description LIKE ‘%" + forSQL(descriptionSearch) + "%‘ ";
}
if(whereClause.length() != 0){
whereClause = " WHERE " + whereClause;
}
String countSQL = " SELECT count(*) FROM tb_person " + whereClause;
int recordCount = DbManager.getCount(countSQL);
int pageCount = (recordCount + pageSize) / pageSize;
String querySQL = " SELECT * FROM tb_person " + whereClause + " LIMIT " + (pageNum-1)*pageSize + ", " + pageSize;
Connection conn = null;
Statement stmt = null;
ResultSet rs = null;
try{
conn = DbManager.getConnection();
stmt = conn.createStatement();
rs = stmt.executeQuery(querySQL);
%>
<form action="searchPerson.jsp" method=get>
<fieldset style=‘width:80%‘>
<legend>查询条件</legend>
<table >
<tr>
<td style="text-align:right; ">姓名</td>
<td style="text-align:left; ">
<input type=‘text‘ name=‘name‘ value="${ param.name }"/>
</td>
<td style="text-align:right; ">性别</td>
<td style="text-align:left; ">
<select name=‘sex‘ />
<option value="">无限制</option>
<option value="男" ${ ‘男‘==param.sex ? ‘selected‘ : ‘‘ }>男</option>
<option value="女" ${ ‘女‘==param.sex ? ‘selected‘ : ‘‘ }>女</option>
</select>
</td>
</tr>
<tr>
<td style="text-align:right; ">英文名</td>
<td style="text-align:left; ">
<input type=‘text‘ name=‘englishName‘ value="${ param.englishName }"/>
</td>
<td style="text-align:right; ">备注</td>
<td style="text-align:left; ">
<input type=‘text‘ name=‘description‘ value="${ param.description }"/>
</td>
</tr>
<tr>
<td colspan=4>
<input type="submit" value="提交查询">
<input type="reset" value="复位">
</td>
</tr>
</table>
</fieldset>
<br/>
<table bgcolor="#CCCCCC" cellspacing=1 cellpadding=5 width=100%>
<tr bgcolor=#DDDDDD>
<th></th>
<th>ID</th>
<th>Name</th>
<th>English Name</th>
<th>Gender</th>
<th>Age</th>
<th>Birthday</th>
<th>Comment</th>
<th>Created Time</th>
<th>Operation</th>
</tr>
<%
while(rs.next()){
int id = rs.getInt("id");
int age = rs.getInt("age");
String name = rs.getString("name");
String englishName = rs.getString("english_name");
String sex = rs.getString("sex");
String description = rs.getString("description");
Date birthday = rs.getDate("birthday");
Timestamp createTime = rs.getTimestamp("create_time");
%>
<tr bgcolor=#FFFFFF>
<td><input type="checkbox" name="id" value="<%= id %>"/></td>
<td><%= id %></td>
<td><%= name %></td>
<td><%= englishName %></td>
<td><%= sex %></td>
<td><%= age %></td>
<td><%= birthday %></td>
<td><%= description %></td>
<td><%= createTime %></td>
<td>
<a href=‘operatePerson.jsp?action=del&id=" + <%= id %> + "‘ onclick=‘delete_Click()‘>Delete</a>
<a href=‘operatePerson.jsp?action=edit&id=" + <%= id %> + "‘>Edit</a>
</td>
</tr>
<%
}
%>
</table>
<table align=right>
<tr>
<td><%=Pagination.getPagination(pageNum, pageCount,
recordCount, request.getRequestURI())%>
</td>
</tr>
</table>
<br />
<br />
<br />
<table width=‘100%‘>
<tr>
<td style=‘text-align:center; ‘><br />
<br /> <%="Count SQL: " + countSQL%> <br />
<br /> <%="Query SQL: " + querySQL%></td>
</tr>
</table>
</form>
<%
}
catch (Exception e){
out.println("执行SQL：" + querySQL + "时出错：" + e.getMessage());
}
finally {
if(rs != null) rs.close();
if(stmt != null) stmt.close();
if(conn != null) conn.close();
}
%>
</body>
</html>
JDBC详解(3)
时间： 2024-10-26 05:00:39