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    發(fā)布日期: 2023-08-12
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資源截圖

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(chǔ)dao的實(shí)現(xiàn)類,實(shí)現(xiàn)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(shù)據(jù)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(shí)間???名稱
-----------?---------??----------?-----??----

?????文件???????2304??2017-11-22?16:15??EasyBuy\.classpath

?????文件??????????7??2016-05-31?19:16??EasyBuy\.idea\.name

?????文件????????327??2016-10-21?17:47??EasyBuy\.idea\artifacts\EasyBuy.xml

?????文件????????709??2016-05-31?19:16??EasyBuy\.idea\compiler.xml

?????文件?????????76??2016-05-31?19:16??EasyBuy\.idea\copyright\profiles_settings.xml

?????文件????????164??2016-05-31?19:16??EasyBuy\.idea\encodings.xml

?????文件????????298??2016-05-31?19:54??EasyBuy\.idea\libraries\lib.xml

?????文件????????463??2016-05-31?19:35??EasyBuy\.idea\misc.xml

?????文件????????254??2016-05-31?19:16??EasyBuy\.idea\modules.xml

?????文件????????143??2016-05-31?19:16??EasyBuy\.idea\scopes\scope_settings.xml

?????文件???????8792??2016-05-31?20:02??EasyBuy\.idea\uiDesigner.xml

?????文件????????164??2016-05-31?19:16??EasyBuy\.idea\vcs.xml

?????文件??????58076??2016-10-24?11:47??EasyBuy\.idea\workspace.xml

?????文件????????294??2016-10-24?17:22??EasyBuy\.mymetadata

?????文件???????1617??2017-11-22?16:03??EasyBuy\.project

?????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.xml

?????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

?????文件????????147??2016-10-24?17:22??EasyBuy\resources\database.properties

?????文件???????2375??2016-06-02?15:07??EasyBuy\resources\log4j.properties

?????文件???????1726??2017-11-24?17:00??EasyBuy\resources\mybaits-config.xml

?????文件???????2601??2016-09-02?14:10??EasyBuy\src\cn\easybuy\dao\baseDaoImpl.java

?????文件???????1579??2016-08-30?14:17??EasyBuy\src\cn\easybuy\dao\IbaseDao.java

?????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

............此處省略688個(gè)文件信息

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