<action
name="empForm"
attribute="empForm"
path="/queryEmp"
scope="request"
type="struts.t02.QueryEmpAction">
<forward name="success" path="/struts/t02/queryEmp.jsp"/>
</action>
<form-bean name=”empForm” type=”struts.t02.EmpForm”></form-bean>
package emp;
public class Emp {
private int empno = -1;
private String ename = "aa";
private double sal = 0;
private String job = "";
private int deptno = -1;
public int getEmpno() {
return empno;
}
public void setEmpno(int empno) {
this.empno = empno;
}
public String getEname() {
return ename;
}
public void setEname(String ename) {
this.ename = ename;
}
public double getSal() {
return sal;
}
public void setSal(double sal) {
this.sal = sal;
}
public String getJob() {
return job;
}
public void setJob(String job) {
this.job = job;
}
public int getDeptno() {
return deptno;
}
public void setDeptno(int deptno) {
this.deptno = deptno;
}
}
package emp;
import java.sql.*;
import java.util.*;
import util.ConnectionUtil;
public class EmpDao {
public void addEmp(Emp e) throws Exception{
Connection con = null;
PreparedStatement ps = null;
try{
con = ConnectionUtil.getConnection();
String sql = "insert into employee (empno,ename,job,sal,deptno) "
+" values(?,?,?,?,?)";
ps = con.prepareStatement(sql);
ps.setInt(1, e.getEmpno());
ps.setString(2, e.getEname());
ps.setString(3, e.getJob());
ps.setDouble(4, e.getSal());
ps.setInt(5, e.getDeptno());
ps.executeUpdate();
}catch(Exception ee){
throw ee;
}finally{
ConnectionUtil.closeDB(con, ps, null);
}
}
public List findDeptAll() throws Exception{
Connection con = null;
Statement st = null;
ResultSet rs = null;
List list = new ArrayList();
try{
con = ConnectionUtil.getConnection();
st = con.createStatement();
String sql = "select deptno,dname from dept";
rs = st.executeQuery(sql);
Dept d = null;
while(rs.next()){
d = new Dept();
d.setDeptno(rs.getInt(1));
d.setDname(rs.getString(2));
list.add(d);
}
}catch(Exception e){
throw e;
}finally{
ConnectionUtil.closeDB(con, st, rs);
}
return list;
}
public List findEmpAll(Emp e) throws Exception{
Connection con = null;
Statement st = null;
ResultSet rs = null;
List list = new ArrayList();
StringBuffer sql = new StringBuffer("select ename,empno,sal,job,deptno from emp where 1=1");
if(e != null){
if(e.getEname()!= null &&!e.getEname().equals("")){
sql.append(" and ename like '%"+e.getEname()+"%'");
}
if(e.getJob()!= null &&!e.getJob().equals("")){
sql.append(" and job ='"+e.getJob()+"'");
}
if(e.getDeptno() != -1){
sql.append(" and deptno = "+e.getDeptno());
}
}
try{
con = ConnectionUtil.getConnection();
st = con.createStatement();
rs = st.executeQuery(sql.toString());
Emp emp = null;
while(rs.next()){
emp = new Emp();
emp.setEmpno(rs.getInt("empno"));
emp.setEname(rs.getString("ename"));
emp.setJob(rs.getString("job"));
emp.setSal(rs.getDouble("sal"));
emp.setDeptno(rs.getInt("deptno"));
list.add(emp);
}
}catch(Exception ee){
throw ee;
}finally{
ConnectionUtil.closeDB(con, st, rs);
}
return list;
}
}
package struts.t02;
import javax.servlet.http.HttpServletRequest;
import org.apache.struts.action.ActionErrors;
import org.apache.struts.action.ActionForm;
import org.apache.struts.action.ActionMapping;
import org.apache.struts.action.ActionMessage;
import emp.Emp;
public class EmpForm extends ActionForm{
private Emp emp = new Emp();
public Emp getEmp() {
return emp;
}
public void setEmp(Emp emp) {
this.emp = emp;
}
public ActionErrors validate(ActionMapping mapping,
HttpServletRequest request) {
// ActionErrors errors = new ActionErrors();
// if(emp.getEname() == null || emp.getEname().equals("")){
// errors.add("name", new ActionMessage("error.emp.add.name"));
// return errors;
// }
// if(emp.getSal() == 0){
// errors.add("sal", new ActionMessage("error.emp.add.sal"));
// return errors;
// }
return null;
}
}
package struts.t02;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.apache.struts.action.Action;
import org.apache.struts.action.ActionForm;
import org.apache.struts.action.ActionForward;
import org.apache.struts.action.ActionMapping;
import org.apache.struts.action.ActionMessage;
import org.apache.struts.action.ActionMessages;
import java.util.*;
import emp.EmpDao;
public class QueryEmpAction extends Action{
public ActionForward execute(ActionMapping mapping, ActionForm form,
HttpServletRequest request, HttpServletResponse response) {
EmpForm ef = (EmpForm)form;
String target = "success";
try{
EmpDao dao = new EmpDao();
List list = dao.findDeptAll();
List empList = dao.findEmpAll(ef.getEmp());
request.setAttribute("deptList", list);
request.setAttribute("eList", empList);
}catch(Exception e){
e.printStackTrace();
}
return mapping.findForward(target);
}
}
<%@ page language="java" import="java.util.*" pageEncoding="GB18030"%>
<%@ taglib uri="http://struts.apache.org/tags-bean" prefix="bean" %>
<%@ taglib uri="http://struts.apache.org/tags-html" prefix="html" %>
<%@ taglib uri="http://struts.apache.org/tags-logic" prefix="logic" %>
<%@ taglib uri="http://java.sun.com/jsp/jstl/core" prefix="c" %>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<title>My JSP 'queryEmp.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>
<br><html:form action="queryEmp" method="post">
<table border=1>
<tr>
<td>姓名：</td>
<td><html:text property="emp.ename"/><br></td>
<td>工作：</td>
<td>
<html:select property="emp.job">
<html:option value="">請選擇</html:option>
<html:option value="sale">sale</html:option>
<html:option value="operator">operator</html:option>
</html:select>
</td>
</tr>
<tr>
<td>部門：</td>
<td>
<html:select property="emp.deptno">
<html:optionsCollection name="deptList" value="deptno" label="dname"/>
</html:select>
</td>
</tr>
<tr>
<td colspan=4><html:submit value="查詢"/><br></td>
</tr>
</table>
</html:form>
<!-- java.util.List dataList = (List)request.getAttribute("list");-->
<logic:empty name="eList" scope="request">
<c:out value="沒有數據"></c:out>
</logic:empty>
<logic:notEmpty name="eList" scope="request">
<table border=1>
<tr>
<td>編號</td>
<td>姓名</td>
<td>工作</td>
<td>工資</td>
<td>部門</td>
</tr>
<logic:iterate id="emp" name="eList">
<tr>
<td><c:out value="${emp.empno}"></c:out></td>
<td><c:out value="${emp.ename}"></c:out></td>
<td><c:out value="${emp.job}"></c:out></td>
<td><bean:write name="emp" property="sal" format="#,###"/>
<td><bean:write name="emp" property="deptno"/></td>
</tr>
</logic:iterate>
</table>
</logic:notEmpty>
</body>
</html>
