資源簡介
不知不覺又過了一個學期了,已然到了S2,懵懵懂懂的又要開始書寫易買網項目了。回想當初書寫易買網時的一無所知,到現在的略懂一二,我也學會了很多,有團隊的合作精神、個人代碼的書寫能力等。

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??2018-07-23?19:44??easybuy\
?????文件?????????577??2016-05-31?15:36??easybuy\.classpath
?????目錄???????????0??2018-07-23?19:43??easybuy\.idea\
?????文件???????????7??2016-05-31?19:16??easybuy\.idea\.name
?????目錄???????????0??2018-07-23?19:43??easybuy\.idea\artifacts\
?????文件?????????327??2016-10-21?17:47??easybuy\.idea\artifacts\EasyBuy.xm
?????文件?????????709??2016-05-31?19:16??easybuy\.idea\compiler.xm
?????目錄???????????0??2018-07-23?19:43??easybuy\.idea\copyright\
?????文件??????????76??2016-05-31?19:16??easybuy\.idea\copyright\profiles_settings.xm
?????文件?????????164??2016-05-31?19:16??easybuy\.idea\encodings.xm
?????目錄???????????0??2018-07-23?19:43??easybuy\.idea\libraries\
?????文件?????????298??2016-05-31?19:54??easybuy\.idea\libraries\lib.xm
?????文件?????????463??2016-05-31?19:35??easybuy\.idea\misc.xm
?????文件?????????254??2016-05-31?19:16??easybuy\.idea\modules.xm
?????目錄???????????0??2018-07-23?19:43??easybuy\.idea\scopes\
?????文件?????????143??2016-05-31?19:16??easybuy\.idea\scopes\scope_settings.xm
?????文件????????8792??2016-05-31?20:02??easybuy\.idea\uiDesigner.xm
?????文件?????????164??2016-05-31?19:16??easybuy\.idea\vcs.xm
?????文件???????61430??2016-10-21?17:47??easybuy\.idea\workspace.xm
?????目錄???????????0??2018-07-23?19:44??easybuy\.myeclipse\
?????文件?????????294??2016-10-21?17:48??easybuy\.myme
?????文件????????1750??2016-05-31?09:04??easybuy\.project
?????目錄???????????0??2018-07-23?19:43??easybuy\.settings\
?????文件?????????500??2016-05-31?09:01??easybuy\.settings\.jsdtscope
?????文件??????????57??2016-10-21?17:50??easybuy\.settings\org.eclipse.core.resources.prefs
?????文件?????????364??2016-05-31?09:01??easybuy\.settings\org.eclipse.jdt.core.prefs
?????文件?????????539??2016-05-31?15:36??easybuy\.settings\org.eclipse.wst.common.component
?????文件?????????252??2016-05-31?09:01??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????????1177??2016-10-21?17:47??easybuy\EasyBuy.iml
............此處省略670個文件信息
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