Android 通过JDBC连接Oracle Mysql Sqlserver

//通过JDBC连接Oracle

private void conOracle(){
try {
Class.forName("oracle.jdbc.driver.OracleDriver");
String url ="jdbc:oracle:thin:@192.168.0.5:1522:purchasedb";//链接数据库语句
java.sql.Connection conn= (java.sql.Connection) DriverManager.getConnection(url,"ty","123"); //链接数据库
java.sql.Statement stmt=(java.sql.Statement) conn.createStatement(ResultSet.TYPE_SCROLL_SENSITIVE,ResultSet.CONCUR_UPDATABLE);
String sql="select * from s_dict_data";//查询user表语句
ResultSet rs=stmt.executeQuery(sql);//执行查询
StringBuilder str=new StringBuilder();
while(rs.next()){
str.append(rs.getString(1)+"\n");
}
mSetText(str.toString());
rs.close();
stmt.close();
conn.close();
} catch (Exception e) {
e.printStackTrace();
}
}

//通过JDBC连接MySql

private void conMysql(){
try {
Class.forName("com.mysql.jdbc.Driver");
String url ="jdbc:mysql://192.168.0.3:3306/schedule";//链接数据库语句
com.mysql.jdbc.Connection conn= (com.mysql.jdbc.Connection) DriverManager.getConnection(url,"root","newland"); //链接数据库
com.mysql.jdbc.Statement stmt=(com.mysql.jdbc.Statement) conn.createStatement(ResultSet.TYPE_SCROLL_INSENSITIVE,ResultSet.CONCUR_UPDATABLE);
String sql="select * from project";//查询user表语句
ResultSet rs=stmt.executeQuery(sql);//执行查询
StringBuilder str=new StringBuilder();
while(rs.next()){
str.append(rs.getString(1)+"\n");
}
mSetText(str.toString());
System.out.println(str.toString());
rs.close();
stmt.close();
conn.close();
} catch (Exception e) {
e.printStackTrace();
}
}

//通过JSBC连接SQLServer
private void conSqlserver(){
try {
Class.forName("net.sourceforge.jtds.jdbc.Driver");
String url ="jdbc:jtds:sqlserver://192.168.36.131:1433/EIS";//链接数据库语句
java.sql.Connection conn= (java.sql.Connection) DriverManager.getConnection(url,"sa","123"); //链接数据库
java.sql.Statement stmt=(java.sql.Statement) conn.createStatement(ResultSet.TYPE_SCROLL_INSENSITIVE,ResultSet.CONCUR_UPDATABLE);
String sql="select * from aa";//查询user表语句
ResultSet rs=stmt.executeQuery(sql);//执行查询
StringBuilder str=new StringBuilder();
while(rs.next()){
str.append(rs.getString(1)+"\n");
str.append(rs.getString(2)+"\n");
}
System.out.println(str.toString());
mSetText(str.toString());
rs.close();
stmt.close();
conn.close();
} catch (Exception e) {
e.printStackTrace();
}
}