页面效果：
1.点击用户管理
2.输入查询条件，查询数据库，数据回显
实现步骤
数据库实现
#用户表 CREATE TABLE Elec_User( UserID VARCHAR(50) NOT NULL, #主键ID JctID VARCHAR(50) NULL, #所属单位code JctUnitID VARCHAR(50) NULL, #所属单位的单位名称（联动） UserName VARCHAR(50) NULL, #用户姓名 LogonName VARCHAR(50) NULL, #登录名 LogonPwd VARCHAR(50) NULL, #密码# SexID VARCHAR(10) NULL, #性别 Birthday DATETIME NULL, #出生日期 Address VARCHAR(100) NULL, #联系地址 ContactTel VARCHAR(50) NULL, #联系电话 Email VARCHAR(50) NULL, #电子邮箱 Mobile VARCHAR(50) NULL, #手机 IsDuty VARCHAR(10) NULL, #是否在职 PostID VARCHAR(10) NULL, #职位（主要用于工作流审核） OnDutyDate DATETIME NULL, #入职时间 OffDutyDate DATETIME NULL, #离职时间 remark VARCHAR(500) NULL #备注 #IsDelete VARCHAR(10) NULL, #是否删除 #CreateEmpID VARCHAR(50) NULL,#创建人ID #CreateDate DATETIME NULL, #创建时间 #LastEmpID VARCHAR(50) NULL, #修改人ID #LastDate DATETIME NULL #修改时间 ) #用户职称附件表 CREATE TABLE Elec_User_File( FileID VARCHAR(50) not null primary key, #主键ID UserID VARCHAR(50) NULL, #用户ID FileName VARCHAR(50) NULL, #文件名 FileURL VARCHAR(1000) NULL, #文件路径 ProgressTime TIMESTAMP NULL, #上传时间 CONSTRAINT FOREIGN KEY(userID) REFERENCES Elec_User(userID) )
domain设计
创建2个JavaBean
根据用户表和附件表，创建相应的javabean文件：ElecUser.java和ElecUserFile.java，代码略
创建2个xml
因为一个用户对应多个附件，所以用户表与附件表是一对多的关系。
1.ElecUser.hbm.xml
<?xml version="1.0" encoding="UTF-8"?> <!DOCTYPE hibernate-mapping PUBLIC "-//Hibernate/Hibernate Mapping DTD 3.0//EN" "http://hibernate.sourceforge.net/hibernate-mapping-3.0.dtd"> <hibernate-mapping> <class name="cn.elec.domain.ElecUser" table="Elec_User"> <id name="userID" type="string" column="userID"> <generator class="uuid"></generator> </id> <property name="jctID" type="string" column="jctID"></property> <property name="jctUnitID" type="string" column="jctUnitID"></property> <property name="userName" type="string" column="userName"></property> <property name="logonName" type="string" column="logonName"></property> <property name="logonPwd" type="string" column="logonPwd"></property> <property name="sexID" type="string" column="sexID"></property> <property name="birthday" type="date" column="birthday"></property> <property name="address" type="string" column="address"></property> <property name="contactTel" type="string" column="contactTel"></property> <property name="email" type="string" column="email"></property> <property name="mobile" type="string" column="mobile"></property> <property name="isDuty" type="string" column="isDuty"></property> <property name="postID" type="string" column="postID"></property> <property name="onDutyDate" type="date" column="onDutyDate"></property> <property name="offDutyDate" type="date" column="offDutyDate"></property> <property name="remark" type="string" column="remark"></property> <!-- 一个用户对应多个文件 --> <set name="elecUserFiles" table="Elec_User_File" inverse="true"> <key> <column name="userID"></column> </key> <one-to-many class="cn.hust.elec.domain.ElecUserFile"/> </set> </class> </hibernate-mapping>
2.ElecUserFile.hbm.xml
<?xml version="1.0" encoding="UTF-8"?> <!DOCTYPE hibernate-mapping PUBLIC "-//Hibernate/Hibernate Mapping DTD 3.0//EN" "http://hibernate.sourceforge.net/hibernate-mapping-3.0.dtd"> <hibernate-mapping> <class name="cn.elec.domain.ElecUserFile" table="Elec_User_File"> <id name="fileID" type="string" column="fileID"> <generator class="uuid"></generator> </id> <property name="fileName" type="string" column="fileName"></property> <property name="fileURL" type="string" column="fileURL"></property> <property name="progressTime" type="timestamp" column="progressTime"></property> <!-- 用户文件和用户是多对一的关系 --> <many-to-one name="elecUser" class="cn.hust.elec.domain.ElecUser"> <column name="userID"></column> </many-to-one> </class> </hibernate-mapping>
3.在hibernate.cfg.xml中添加：
<mapping resource="/cn/elec/domain/ElecUser.hbm.xml"></mapping> <mapping resource="/cn/elec/domain/ElecUserFile.hbm.xml"></mapping>
Dao设计
创建Dao接口
1.用户表Dao:ElecUserDao.java
public interface IElecUserDao extends ICommonDao<ElecUser> { public static final String SERVICE_NAME="cn.elec.dao.imp.ElecUserDaoImpl"; }
2.附件表Dao:ElecUserFileDao.java
public interface IElecUserFileDao extends ICommonDao<ElecUserFile> { public static final String SERVICE_NAME="cn.elec.dao.imp.ElecUserFileDaoImpl"; }
创建Dao实现类
1.ElecUserDaoImpl.java
@Repository(IElecUserDao.SERVICE_NAME) public class ElecUserDaoImpl extends ICommonDaoImpl<ElecUser> implements IElecUserDao{ }
2.ElecUserFileDaoImpl.java
@Repository(IElecUserFileDao.SERVICE_NAME) public class ElecUserFileDaoImpl extends ICommonDaoImpl<ElecUserFile> implements IElecUserFileDao{ }
Service设计
创建Service接口
public interface IElecUserService { public static final String SERVICE_NAME="cn.elec.service.impl.ElecUserServiceImpl"; List<ElecUser> findUserlistByCondition(ElecUser elecUser); }
创建Service实现类
@Service(IElecUserService.SERVICE_NAME) @Transactional(readOnly=true) public class ElecUserServiceImpl implements IElecUserService{ //用户表Dao @Resource(name=IElecUserDao.SERVICE_NAME) private IElecUserDao elecUserDao; //附件表Dao @Resource(name=IElecUserFileDao.SERVICE_NAME) private IElecUserFileDao elecUserFileDao; //数据字典Dao @Resource(name=IElecSystemDDLDao.SERVICE_NAME) private IElecSystemDDLDao elecSystemDDLDao; /** * @Name: findUserlistByCondition * @Description: 根据查询条件返回查询结果 * @Parameters: ElecUser VO对象 * @Return: List<ElecUser>：用户集合 */ @Override public List<ElecUser> findUserlistByCondition(ElecUser elecUser) { String condition=""; List<Object> paramsList = new ArrayList<Object>(); //用户名 String userName = elecUser.getUserName(); if(StringUtils.isNotBlank(userName)){ condition+=" and o.userName like ?"; paramsList.add("%"+userName+"%"); } //所属单位 String jctID = elecUser.getJctID(); if(StringUtils.isNotBlank(jctID)){ condition+=" and o.jctID = ?"; paramsList.add(jctID); } //查询的起始日期 Date onDutyDateBegin = elecUser.getOnDutyDateBegin(); if(onDutyDateBegin!=null){ condition+=" and o.onDutyDate >= ?"; paramsList.add(onDutyDateBegin); } //查询的结束日期 Date onDutyDateEnd = elecUser.getOnDutyDateEnd(); if(onDutyDateBegin!=null){ condition+=" and o.onDutyDate <= ?"; paramsList.add(onDutyDateEnd); } Object[] params = paramsList.toArray(); //排序（按入职时间顺序排序） Map<String, String> orderby = new LinkedHashMap<String, String>(); orderby.put("o.onDutyDate", "asc"); List<ElecUser> list = elecUserDao.findCollectionByConditionNoPage(condition, params, orderby); /**数据字典的转换 * 根据数据类型和数据编号，查询数据项的值 */ this.convertSystemDDL(list); return list; } //根据数据类型和数据编号，查询数据项的值 private void convertSystemDDL(List<ElecUser> list) { if(list!=null&&list.size()>0){ for(ElecUser user:list){ //性别 String sexID=elecSystemDDLDao.findDdlNameByKeywordAndDdlCode("性别",user.getSexID()); user.setSexID(sexID); //职位 String postID=elecSystemDDLDao.findDdlNameByKeywordAndDdlCode("职位",user.getPostID()); user.setPostID(postID); } } } }
问题：当使用数据字典的时候，需要数据的转换，多了很多的sql语句，如何进行sql优化？
Action设计
1.创建UserAction类
public class ElecUserAction extends BaseAction<ElecUser>{ ElecUser elecUser=this.getModel(); //注入用户管理service @Resource(name=IElecUserService.SERVICE_NAME) IElecUserService elecUserService; //注入数据字典service @Resource(name=IElecSystemDDLService.SERVICE_NAME) IElecSystemDDLService elecSystemDDLService; /** * @Name: home * @Description: 跳转到用户管理页面 * @Parameters: 无 * @Return: String：跳转到system/userIndex.jsp */ public String home(){ //加载数据类型是所属单位的数据字典的集合，遍历在页面的下拉菜单中 List<ElecSystemDDL> jctList = elecSystemDDLService.findSystemDDLListByKeyword("所属单位"); request.setAttribute("jctList", jctList); //组织页面中的查询条件，查询用户表，返回List<ElecUser> List<ElecUser> userList=elecUserService.findUserlistByCondition(elecUser); request.setAttribute("userList", userList); return "home"; } }
2.在struts.xml中添加
<!-- 用户管理 --> <action name="elecUserAction_*" class="elecUserAction" method="{1}"> <result name="home">/WEB-INF/page/system/userIndex.jsp</result> </action>
Jsp页面设计
<%@ page language="java" pageEncoding="UTF-8"%> <%@taglib uri="/struts-tags" prefix="s"%> <script language="javascript"> function deleteAll(){ var selectuser = document.getElementsByName("userID"); var flag = false; for(var i=0;i<selectuser.length;i++){ if(selectuser[i].checked){ flag = true; } } if(!flag){ alert("没有选择执行操作的用户！不能执行该操作"); return false; } else{ var confirmflag = window.confirm("你确定执行批量删除吗？"); if(!confirmflag){ return false; } else{ document.Form2.action = "elecUserAction_delete.do"; document.Form2.submit(); return true; } } } //用户:全部选中/全部不选中 function checkAllUser(user){ var selectuser = document.getElementsByName("userID"); for(var i=0;i<selectuser.length;i++){ selectuser[i].checked = user.checked; } } </script> <HTML> <HEAD> <title>用户管理</title> <LINK href="${pageContext.request.contextPath }/css/Style.css" type="text/css" rel="stylesheet"> <script type="text/javascript" src="${pageContext.request.contextPath}/My97DatePicker/WdatePicker.js"></script> <script language="javascript" src="${pageContext.request.contextPath }/script/function.js"></script> </HEAD> <body > <form id="Form1" name="Form1" action="${pageContext.request.contextPath }/system/elecUserAction_home.do" method="post" style="margin:0px;"> <table cellspacing="1" cellpadding="0" width="90%" align="center" bgcolor="#f5fafe" border="0"> <TR height=10><td></td></TR> <tr> <td class="ta_01" colspan="4" align="center" background="../images/b-info.gif"> <font face="宋体" size="2"><strong>用户信息管理</strong></font> </td> </tr> <tr> <td class="ta_01" align="center" bgcolor="#f5fafe" height="22"> 姓名：</td> <td class="ta_01" > <s:textfield name="userName" size="21" id="userName"></s:textfield> </td> <td class="ta_01" align="center" bgcolor="#f5fafe" height="22"> 所属单位：</td> <td class="ta_01" > <s:select list="#request.jctList" name="jctID" id="jctID" headerKey="" headerValue="请选择" listKey="ddlCode" listValue="ddlName" cssStyle="155px"></s:select> </td> </tr> <tr> <td class="ta_01" align="center" bgcolor="#f5fafe" height="22"> 入职时间：</td> <td class="ta_01" colspan="3"> <s:date name="onDutyDateBegin" format="yyyy-MM-dd" var="begin"/> <s:textfield name="onDutyDateBegin" value="%{begin}" id="onDutyDateBegin" maxlength="50" size="20" onclick="WdatePicker()"></s:textfield> ~ <s:date name="onDutyDateEnd" format="yyyy-MM-dd" var="end"/> <s:textfield name="onDutyDateEnd" value="%{end}" id="onDutyDateEnd" maxlength="50" size="20" onclick="WdatePicker()"></s:textfield> </td> </tr> </table> </form> <form id="Form2" name="Form2" action="/system/userAction_main.do" method="post"> <table cellSpacing="1" cellPadding="0" width="90%" align="center" bgColor="#f5fafe" border="0"> <TBODY> <TR height=10><td></td></TR> <tr> <td> <TABLE style="WIDTH: 105px; HEIGHT: 20px" border="0"> <TR> <TD align="center" background="${pageContext.request.contextPath }/images/cotNavGround.gif"><img src="${pageContext.request.contextPath }/images/yin.gif" width="15"></TD> <TD class="DropShadow" background="${pageContext.request.contextPath }/images/cotNavGround.gif">用户列表</TD> </TR> </TABLE> </td> <td class="ta_01" align="right"> <input style="font-size:12px; color:black; height=20;width=80" id="BT_Add" type="button" value="查询" name="BT_find" onclick="document.forms[0].submit()"> <input style="font-size:12px; color:black; height=20;width=80" id="BT_Add" type="button" value="添加用户" name="BT_Add" onclick="openWindow('${pageContext.request.contextPath }/system/elecUserAction_add.do','900','700')"> <input style="font-size:12px; color:black; height=20;width=80" id="BT_Delete" type="button" value="批量删除" name="BT_Delete" onclick="return deleteAll()"> </td> </tr> <tr> <td class="ta_01" align="center" bgColor="#f5fafe" colspan="2"> <table cellspacing="0" cellpadding="1" rules="all" bordercolor="gray" border="1" id="DataGrid1" style="BORDER-RIGHT:gray 1px solid; BORDER-TOP:gray 1px solid; BORDER-LEFT:gray 1px solid; WIDTH:100%; WORD-BREAK:break-all; BORDER-BOTTOM:gray 1px solid; BORDER-COLLAPSE:collapse; BACKGROUND-COLOR:#f5fafe; WORD-WRAP:break-word"> <tr style="FONT-WEIGHT:bold;FONT-SIZE:12pt;HEIGHT:25px;BACKGROUND-COLOR:#afd1f3"> <td align="center" width="5%" height=22 background="${pageContext.request.contextPath }/images/tablehead.jpg"><input type="checkbox" name="selectUserAll" onclick="checkAllUser(this)"></td> <td align="center" width="15%" height=22 background="${pageContext.request.contextPath }/images/tablehead.jpg">登录名</td> <td align="center" width="15%" height=22 background="${pageContext.request.contextPath }/images/tablehead.jpg">用户姓名</td> <td align="center" width="7%" height=22 background="${pageContext.request.contextPath }/images/tablehead.jpg">性别</td> <td align="center" width="15%" height=22 background="${pageContext.request.contextPath }/images/tablehead.jpg">联系电话</td> <td align="center" width="15%" height=22 background="${pageContext.request.contextPath }/images/tablehead.jpg">入职时间</td> <td align="center" width="8%" height=22 background="${pageContext.request.contextPath }/images/tablehead.jpg">职位</td> <td width="10%" align="center" height=22 background="${pageContext.request.contextPath }/images/tablehead.jpg">编辑</td> <td width="10%" align="center" height=22 background="${pageContext.request.contextPath }/images/tablehead.jpg">查看</td> </tr> <s:if test="#request.userList!=null && #request.userList.size()>0"> <s:iterator value="#request.userList"> <tr onmouseover="this.style.backgroundColor = 'white'" onmouseout="this.style.backgroundColor = '#F5FAFE';"> <td style="HEIGHT:22px" align="center" width="5%"> <input type="checkbox" name="userID" id="userID" value="<s:property value="userID"/>"> </td> <td style="HEIGHT:22px" align="center" width="15%"> <s:property value="logonName"/> </td> <td style="HEIGHT:22px" align="center" width="15%"> <s:property value="userName"/> </td> <td style="HEIGHT:22px" align="center" width="7%"> <s:property value="sexID"/> </td> <td style="HEIGHT:22px" align="center" width="15%"> <s:property value="contactTel"/> </td> <td style="HEIGHT:22px" align="center" width="15%"> <s:date name="onDutyDate" format="yyyy-MM-dd"/> </td> <td style="HEIGHT:22px" align="center" width="8%"> <s:property value="postID"/> </td> <td align="center" style="HEIGHT: 22px" align="center" width="10%"> <a href="#" onclick="openWindow('userEdit.jsp?userID=<s:property value="userID"/>','900','700');"> <img src="${pageContext.request.contextPath }/images/edit.gif" border="0" style="CURSOR:hand"></a> </td> <td align="center" style="HEIGHT: 22px" align="center" width="10%"> <a href="#" onclick="openWindow('userEdit.jsp?userID=<s:property value="userID"/>&viewflag=1','900','700');"> <img src="${pageContext.request.contextPath }/images/button_view.gif" width="20" height="18" border="0" style="CURSOR:hand"></a> </td> </tr> </s:iterator> </s:if> </table> </td> </tr> </TBODY> </table> </form> </body> </HTML>