java - 如何通过jdbc代码调用oracle的存储过程

Question

我想通过JDBC调用oracle 10g的一个存储过程名（mytable1）。你能告诉我怎么做吗？（我在 struts2 程序中使用此代码）

import java.sql.*;
public class loginuser 
{
public String username;
public String password;
public String execute()
{       

Connection con;
Statement stmt;
ResultSet rs;
try

import java.sql.*;
public class loginuser 
{
public String username;
public String password;
public String execute()
{       

Connection con;
Statement stmt;
ResultSet rs;
try
{

Class.forName("oracle.jdbc.driver.OracleDriver");
con=DriverManager.getConnection("jdbc:oracle:thin:@localhost:1521:XE","Gaurav","oracle");
stmt=con.createStatement();
rs=stmt.executeQuery(" HOW TO CALL A PROCEDURE ? ");

}
catch(ClassNotFoundException e)
{

}
catch(SQLException ex)
{
}
}
public String getpassword()
{
        return password;
    }
   public void setpassword(String m)
{
        this.password = m;
}

public String getusername() {
return username;
}

public void setusername(String username) {
this.username = username;
}
}

--以下是我要调用的程序------------------

CREATE  or replace PROCEDURE mytable1 (tname varchar2)
is
stmt varchar2(1000);
begin
stmt := 'CREATE TABLE '||tname || '(username varchar2(20) ,password varchar2 (10))';
execute immediate stmt;
end;

Answer 1

糟糕的方式：（您可以为此使用现有的 stmt 和 rs 变量）

String query = "begin mytable1(?, ?); end;";
rs=stmt.executeQuery(query);

好办法：

//mytable1 is a stored procedure
String mytable1Sql = "{call mytable1(?)}";
CallableStatement callableStatement = dbConnection.prepareCall(mytable1Sql);
callableStatement.setString(1, "whatever");
// no out parameters, but i'll leave this in so you can see it.
// callableStatement.registerOutParameter(2, java.sql.Types.VARCHAR);

// execute mytable1 stored procedure
callableStatement.executeUpdate();

// no out parameters, but i'll leave this in so you can see it.
// String userName = callableStatement.getString(2);

话虽如此，我通常不建议使用存储过程创建表。