MySQL Blur delete

You can blur the search first, put it in the container, delete

Import java.sql.Connection;
Import Java.sql.DriverManager;
Import java.sql.PreparedStatement;
Import Java.sql.ResultSet;
Import java.sql.SQLException;
Import java.util.ArrayList;
Import java.util.List;

public class Newsdbo {
PRIVATE Connection conn = null;
PreparedStatement statement = null;

Connect to MySQL
public void Connsql () {
String Urle = "jdbc:mysql://192.168.1.100:3306/state?useunicode=true&characterencoding=utf-8";//port:3306
Database:testdb
String username = "root";//user
String password = "";//Password

try {
try {
Class.forName ("Com.mysql.jdbc.Driver"). newinstance ();
} catch (Instantiationexception e) {
TODO auto-generated Catch block
E.printstacktrace ();
} catch (Illegalaccessexception e) {
TODO auto-generated Catch block
E.printstacktrace ();
}//load driver, connect to database
conn = Drivermanager.getconnection (Urle, username, password);
}
Capturing Load Driver exceptions
catch (ClassNotFoundException Cnfex) {
SYSTEM.ERR.PRINTLN ("Load Jdbc/odbc driver failed. ");
Cnfex.printstacktrace ();
}
Catching Connection Database Exceptions
catch (SQLException Sqlex) {
System.err.println ("Unable to connect to database");
Sqlex.printstacktrace ();
}
}

Disconnect to MySQL
public void Deconnsql () {
try {
IF (conn! = null)
Conn.close ();
} catch (Exception e) {
SYSTEM.OUT.PRINTLN ("Close database Problem:");
E.printstacktrace ();
}
}

Execute selection language
Public ResultSet selectsql (String sql) {
ResultSet rs = null;
try {
statement = conn.preparestatement (SQL);
rs = statement.executequery (SQL);
} catch (SQLException e) {
E.printstacktrace ();
}
Return RS;
}

Execute insertion language
public boolean insertsql (String sql) {
try {
statement = conn.preparestatement (SQL);
Statement.executeupdate ();
return true;
} catch (SQLException e) {
SYSTEM.OUT.PRINTLN ("Error inserting database:");
E.printstacktrace ();
} catch (Exception e) {
SYSTEM.OUT.PRINTLN ("error when inserting:");
E.printstacktrace ();
}
return false;
}

public boolean insert (String sql, object[] params) {
if (SQL! = null &&!sql.equals ("")) {
PreparedStatement pstm = null;
if (params = = null)
params = new Object[0];
IF (conn! = null) {
try {
Pstm = (preparedstatement) conn.preparestatement (SQL,
Resultset.type_scroll_insensitive,
RESULTSET.CONCUR_READ_ONLY);
for (int i = 0; i < params.length; i++) {
Pstm.setobject (i + 1, params[i]);
}
Pstm.execute ();
return true;
} catch (SQLException e) {
throw new RuntimeException (e);
}
}
}
return false;
}

Execute Delete language
public boolean deletesql (String sql) {
try {
statement = conn.preparestatement (SQL);
Statement.executeupdate ();
return true;
} catch (SQLException e) {
SYSTEM.OUT.PRINTLN ("Error inserting database:");
E.printstacktrace ();
} catch (Exception e) {
SYSTEM.OUT.PRINTLN ("error when inserting:");
E.printstacktrace ();
}
return false;
}

Execute Update language
public boolean updatesql (String sql) {
try {
statement = conn.preparestatement (SQL);
Statement.executeupdate ();
return true;
} catch (SQLException e) {
SYSTEM.OUT.PRINTLN ("Error inserting database:");
E.printstacktrace ();
} catch (Exception e) {
SYSTEM.OUT.PRINTLN ("error when inserting:");
E.printstacktrace ();
}
return false;
}

Show data in Ju_users
Public list<string> LayoutStyle2 (ResultSet rs) {
list<string> topics = new arraylist<string> ();
String desc;

try {
while (Rs.next ()) {
desc = new String ();
System.out.println (rs.getstring (1));
desc = rs.getstring (1);

Topics.add (DESC);
}
} catch (SQLException e) {
SYSTEM.OUT.PRINTLN ("A database error occurred while displaying. ");
E.printstacktrace ();
} catch (Exception e) {
SYSTEM.OUT.PRINTLN ("Display error. ");
E.printstacktrace ();
}
return topics;
}

public static void Main (String args[]) {
System.out.println ("SFS");
list<string> descid = new arraylist<string> ();
Newsdbo newsdbo = new newsdbo ();
Newsdbo.connsql ();
String select = "Select *from Recorder where descid like '%kaidi% '";
Descid = Newsdbo.layoutstyle2 (Newsdbo.selectsql (select));
String Delete = "Delete from recorder";
Newsdbo.deletesql (delete);
for (int i = 0; i < descid.size (); ++i) {
String Delete = "Delete from recorder where descid= '"
+ Descid.get (i) + "'";
Newsdbo.deletesql (delete);
}
Newsdbo.deconnsql ();
}
}

MySQL blur removal