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S2結業項目全代碼,代碼起一個借鑒作用,大家拷貝下載之后自行修改。

代碼片段和文件信息
package?cn.easybuy.dao;
import?java.sql.*;
import?java.util.ArrayList;
import?java.util.HashMap;
import?java.util.List;
import?java.util.Map;
import?org.apache.log4j.Logger;
import?cn.easybuy.entity.ProductCategory;
import?cn.easybuy.utils.EmptyUtils;
import?cn.easybuy.utils.Params;
/**
?*?基礎dao的實現類,實現最基本的增刪查改的方法
?*/
public?abstract??class?baseDaoImpl?implements?IbaseDao?{
protected?Connection?connection;
protected?PreparedStatement?pstm;
static?Logger?logger=Logger.getLogger(baseDaoImpl.class);
public?baseDaoImpl(Connection?connection)?{
this.connection?=?connection;
}
public?ResultSet?executeQuery(String?sqlobject[]?params){
ResultSet?rs=null;
try?{
pstm?=?connection.prepareStatement(sql);
for(int?i?=?0;?i? pstm.setobject(i+1?params[i]);
}
rs?=?pstm.executeQuery();
}?catch?(Exception?e)?{
e.printStackTrace();
}
return?rs;
}
//增刪改操作?delete?from?news_detail?where?id=??and?title=?
public?int?executeUpdate(String?sqlobject[]?params){
int?updateRows?=?0;
try?{
pstm?=?connection.prepareStatement(sql);
for(int?i?=?0;?i? pstm.setobject(i+1?params[i]);
}
updateRows?=?pstm.executeUpdate();
}?catch?(Exception?e)?{
e.printStackTrace();
updateRows?=?-1;
}
return?updateRows;
}
public?int?executeInsert(String?sqlobject[]?params){
Long?id?=?0L;
try?{
pstm?=?connection.prepareStatement(sqlStatement.RETURN_GENERATED_KEYS);
for(int?i?=?0;?i? pstm.setobject(i+1?params[i]);
}
pstm.executeUpdate();
ResultSet?rs?=?pstm.getGeneratedKeys();?
if?(rs.next())?{?
id?=?rs.getLong(1);
System.out.println(“數據主鍵:“?+?id);?
}?
}?catch?(Exception?e)?{
e.printStackTrace();
id?=null;
}
return?id.intValue();
}
//釋放資源
public?boolean?closeResource(){
if(pstm?!=?null){
try?{
pstm.close();
}?catch?(SQLException?e)?{
e.printStackTrace();
return?false;
}
}
return?true;
}
public?boolean?closeResource(ResultSet?reSet){
if(reSet?!=?null){
try?{
reSet.close();
}?catch?(SQLException?e)?{
//?TODO?Auto-generated?catch?block
e.printStackTrace();
return?false;
}
}
return?true;
}
/**
?*?需要重寫的方法
?*
?*?@param?rs
?*?@return
?*?@throws?Exception
?*/
public?abstract?object?tableToClass(ResultSet?rs)?throws?Exception;
}
?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----
?????目錄???????????0??2018-11-29?19:02??EasyBuy\
?????文件?????????961??2018-11-28?14:21??EasyBuy\.classpath
?????目錄???????????0??2018-11-29?15:24??EasyBuy\.myeclipse\
?????文件?????????296??2018-08-16?08:52??EasyBuy\.myme
?????文件????????1751??2018-08-16?08:52??EasyBuy\.project
?????目錄???????????0??2018-11-29?15:24??EasyBuy\.settings\
?????文件?????????500??2016-05-31?09:01??EasyBuy\.settings\.jsdtscope
?????文件????????1009??2018-08-16?08:53??EasyBuy\.settings\com.genuitec.eclipse.j2eedt.core.prefs
?????文件?????????247??2018-11-28?14:21??EasyBuy\.settings\com.genuitec.eclipse.migration.prefs
?????文件??????????57??2018-08-16?08:53??EasyBuy\.settings\org.eclipse.core.resources.prefs
?????文件?????????364??2016-05-31?09:01??EasyBuy\.settings\org.eclipse.jdt.core.prefs
?????文件?????????629??2018-11-28?14:21??EasyBuy\.settings\org.eclipse.wst.common.component
?????文件?????????361??2018-11-28?14:21??EasyBuy\.settings\org.eclipse.wst.common.project.facet.core.xm
?????文件??????????49??2016-05-31?09:01??EasyBuy\.settings\org.eclipse.wst.jsdt.ui.superType.container
?????文件???????????6??2016-05-31?09:01??EasyBuy\.settings\org.eclipse.wst.jsdt.ui.superType.name
?????文件????????8288??2018-08-16?21:08??EasyBuy\.settings\org.jboss.tools.jst.web.xm
?????文件????????1177??2016-10-21?17:47??EasyBuy\EasyBuy.iml
?????目錄???????????0??2018-11-29?15:24??EasyBuy\resources\
?????文件?????????147??2018-08-16?08:55??EasyBuy\resources\databa
?????文件????????2375??2016-06-02?15:07??EasyBuy\resources\log4j.properties
?????目錄???????????0??2018-11-29?15:24??EasyBuy\src\
?????目錄???????????0??2018-11-29?15:24??EasyBuy\src\cn\
?????目錄???????????0??2018-11-29?15:24??EasyBuy\src\cn\easybuy\
?????目錄???????????0??2018-11-29?15:24??EasyBuy\src\cn\easybuy\dao\
?????文件????????2601??2016-09-02?14:10??EasyBuy\src\cn\easybuy\dao\ba
?????文件????????1579??2018-11-28?15:07??EasyBuy\src\cn\easybuy\dao\Iba
?????目錄???????????0??2018-11-29?15:24??EasyBuy\src\cn\easybuy\dao\news\
?????文件????????1074??2016-10-24?13:10??EasyBuy\src\cn\easybuy\dao\news\NewsDao.java
?????文件????????3843??2016-10-24?13:08??EasyBuy\src\cn\easybuy\dao\news\NewsDaoImpl.java
?????目錄???????????0??2018-11-29?15:24??EasyBuy\src\cn\easybuy\dao\order\
?????文件?????????703??2016-10-21?17:50??EasyBuy\src\cn\easybuy\dao\order\OrderDao.java
............此處省略654個文件信息
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