📄 mymethod.java
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package meThod;
import java.sql.*;
import java.util.ArrayList;
import Bean.NewBean;
import MyDataSource.myDataSource;
public class Mymethod {
private Connection con=null;
private Statement st =null;
//查询方法
public ArrayList sect(){
ArrayList list=new ArrayList();
try {
con=myDataSource.getConnection();
st = con.createStatement();
ResultSet re = st.executeQuery("select id,title,content from news");
while (re.next()) {
NewBean bean = new NewBean();
bean.setId(re.getString(1));
bean.setTitle(re.getString(2));
bean.setContent(re.getString(3));
list.add(bean);
}
} catch (Exception e) {
e.printStackTrace();
}
finally{
try {
st.close();
con.close();
} catch (SQLException e) {
// TODO 自动生成 catch 块
e.printStackTrace();
}
}
return list;
}
//删除方法
public void del(int id){
try {
con=myDataSource.getConnection();
st = con.createStatement();
st.executeUpdate("delete from news where id="+id);
} catch (Exception e) {
e.printStackTrace();
}
finally{
try {
st.close();
con.close();
} catch (SQLException e) {
// TODO 自动生成 catch 块
e.printStackTrace();
}
}
}
}
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