账务账号查询的基础上增加分页

先搜索再分页,分页查询要带搜索的条件,注意用隐藏框暂存页码

代码书写顺序:

--DAO

--Action

--struts.xml

--JSP

DAO:

public class AccountDAOImpl implements IAccountDAO{

public List<Account> findByConndition(String idCardNo, String realName,
String loginName, String status, Integer page, Integer pageSize) throws DAOException {
//拼sql,动态地拼条件,拼条件的同时,拼对应的参数值
String sql = "select * from ("+
"select a.* ,rownum r from account a where 1=1 ";
List<Object> params = new ArrayList<Object>();
if(idCardNo!=null && idCardNo.length()>0){
sql += "and idcard_no=? ";
params.add(idCardNo);
}
if(realName!=null && realName.length()>0){
sql += "and real_name=? ";
params.add(realName);
}
if(loginName!=null && loginName.length()>0){
sql += "and login_name=? ";
params.add(loginName);
}
if(status!=null && status.length()>0 && !status.equals("-1")){
sql += "and status=? ";
params.add(status);
}
sql += ") where r>? and r<?";
//查找的当前页的范围,大于上一页的最大页,小于下一页的最小页
params.add(pageSize*(page-1));
params.add(pageSize*page+1);

List<Account> list = new ArrayList<Account>();
Connection con = DBUtil.getConnection();
try {
PreparedStatement ps = con.prepareStatement(sql);
for(int i=0;i<params.size();i++){
ps.setObject(i+1, params.get(i));
}

ResultSet rs = ps.executeQuery();
while(rs.next()){
Account a = createAccount(rs);
list.add(a);
}
} catch (SQLException e) {
e.printStackTrace();
throw new DAOException("查询账务账号失败",e);
}finally{
DBUtil.close();
}

return list;
}

private Account createAccount(ResultSet rs) throws SQLException{
Account a = new Account();
a.setId(rs.getInt("id"));
a.setRecommenderId(rs.getObject("RECOMMENDER_ID")==null?null:rs.getInt("RECOMMENDER_ID"));
a.setLoginName(rs.getString("LOGIN_NAME"));
a.setLoginPassword(rs.getString("LOGIN_PASSWD"));
a.setStatus(rs.getString("STATUS"));
a.setCreateDate(rs.getDate("CREATE_DATE"));
a.setPauseDate(rs.getDate("PAUSE_DATE"));
a.setCloseDate(rs.getDate("CLOSE_DATE"));
a.setRealName(rs.getString("REAL_NAME"));
a.setIdcardNo(rs.getString("IDCARD_NO"));
a.setBirthDate(rs.getDate("BIRTHDATE"));
a.setGender(rs.getString("GENDER"));
a.setOccupation(rs.getString("OCCUPATION"));
a.setTelephone(rs.getString("TELEPHONE"));
a.setEmail(rs.getString("EMAIL"));
a.setMailaddress(rs.getString("MAILADDRESS"));
a.setZipcode(rs.getString("ZIPCODE"));
a.setQq(rs.getString("QQ"));
a.setLastLoginTime(rs.getDate("LAST_LOGIN_TIME"));
a.setLastLoginIp(rs.getString("LAST_LOGIN_IP"));

return a;
}

public Integer findTotalPage(String idcardNo, String realName,
String loginName, String status, Integer pageSize)
throws DAOException {
String sql = "select count(*) from account where 1=1 ";
List<Object> params = new ArrayList<Object>();
if(idcardNo!=null && idcardNo.length()>0){
sql += "and idcard_no=? ";
params.add(idcardNo);
}

if(realName != null && realName.length()>0){
sql += "and real_name=? ";
params.add(realName);
}

if(loginName != null && loginName.length()>0){
sql += "and login_name=? ";
params.add(loginName);
}

if(status != null && status.length()>0 && !status.equals("-1")){
sql += "and status=? ";
params.add(status);
}

Connection con = DBUtil.getConnection();
try {
PreparedStatement ps = con.prepareStatement(sql);
for(int i=0; i<params.size();i++){
ps.setObject(i+1, params.get(i));
}
ResultSet rs = ps.executeQuery();
if(rs.next()){
int rows = rs.getInt(1);
if(rows%pageSize==0){
return rows/pageSize;
}else{
return rows/pageSize+1;
}
}

} catch (SQLException e) {
e.printStackTrace();
throw new DAOException("查询总页数失败", e);
} finally{
DBUtil.close();
}
return 0;
}

}

Action:
public class FindAccountAction {

public String execute(){

IAccountDAO dao = DAOFactory.getAccountDAO();
try {
accounts = dao.findByConndition(idcardNo, realName, loginName, status, page, pageSize);
totalPage = dao.findTotalPage(idcardNo, realName, loginName, status, pageSize);
} catch (DAOException e) {
e.printStackTrace();
return "error";
}
return "success";
}

public String getIdcardNo() {
return idcardNo;
}
public void setIdcardNo(String idcardNo) {
this.idcardNo = idcardNo;
}
public String getRealName() {
return realName;
}
public void setRealName(String realName) {
this.realName = realName;
}
public String getLoginName() {
return loginName;
}
public void setLoginName(String loginName) {
this.loginName = loginName;
}
public String getStatus() {
return status;
}
public void setStatus(String status) {
this.status = status;
}
public List<Account> getAccounts() {
return accounts;
}
public void setAccounts(List<Account> accounts) {
this.accounts = accounts;
}

public Integer getPage() {
return page;
}

public void setPage(Integer page) {
this.page = page;
}

public Integer getPageSize() {
return pageSize;
}

public void setPageSize(Integer pageSize) {
this.pageSize = pageSize;
}

public Integer getTotalPage() {
return totalPage;
}

public void setTotalPage(Integer totalPage) {
this.totalPage = totalPage;
}

//input
private String idcardNo;
private String realName;
private String loginName;
private String status;
private Integer page = 1;
private Integer pageSize;
//output
private List<Account> accounts;
private Integer totalPage;
}



struts.xml:
<!--账务账号模块-->
<package name="account" extends="netctoss" namespace="/account">
<!--查询Action-->
<action name="findAccount" class="netctoss.action.account.FindAccountAction">
<!--设置每页的容量-->
<param name="pageSize">5</param>
<result name="success">
/WEB-INF/account/findAccount.jsp
</result>
</action>
</package>

Jsp:
<!--分页-->
<!-- 隐藏框用于暂存页码,提交表单时将页码同时传入Action,使分页查询可用该表单提交-->
<input name="page" id="page" type="hidden"/>

<!--搜索-->
<input type="submit" value="搜索" onclick="javascript:toPage(1);" class="btn_search" />

<!--javascript-->
//分页查询,隐藏框设置为用户选中的页
function toPage(currPage){
document.getElementById("page").value = currPage;
document.forms[0].submit();
}

<div id="pages">
<a href="javascript:toPage(1);">首页</a>
<s:if test="page==1">
<a href="#">上一页</a>
</s:if>
<s:else>
<a href="javascript:toPage(<s:property value="page-1"/>);">上一页</a>
</s:else>

<s:iterator begin="1" end="totalPage" var="p">
<s:if test="#p==page">
<a href="javascript:toPage(<s:property value="#p"/>);" class="current_page">
<s:property value="#p"/>
</a>
</s:if>
<s:else>
<a href="javascript:toPage(<s:property value="#p"/>);">
<s:property value="#p"/>
</a>
</s:else>
</s:iterator>

<s:if test="page==totalPage">
<a href="#">下一页</a>
</s:if>
<s:else>
<a href="javascript:toPage(<s:property value="page+1"/>);">下一页</a>
</s:else>
<a href="javascript:toPage(<s:property value="totalPage"/>);">末页</a>
</div>