在线程中执行 MySQL 存储过程并获取不支持的可调用语句
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【中文标题】在线程中执行 MySQL 存储过程并获取不支持的可调用语句【英文标题】：Executing MySQL stored procedure in thread and getting callable statements not supported 【发布时间】：2018-08-06 15:32:41 【问题描述】：我搜索了如何解决这个问题，但没有找到解决方案。
我正在尝试使用 android Java 在 mysql 中执行我的存储过程。我只用 java 试了一下，效果很好，但在 Android 上我得到了这个错误：
08-06 15:21:56.485 4057-4092/com.example.ik.myapplication E/+====/>: S1C00
08-06 15:21:56.485 4057-4092/com.example.ik.myapplication E/+====/>: Callable statments not supported.
08-06 15:21:56.485 4057-4092/com.example.ik.myapplication W/System.err:java.sql.SQLException: Callable statments not supported.
08-06 15:21:56.485 4057-4092/com.example.ik.myapplication W/System.err:at com.mysql.jdbc.Connection.prepareCall(Connection.java:1284)
08-06 15:21:56.485 4057-4092/com.example.ik.myapplication W/System.err:at com.example.ik.myapplication.MainActivity$1$1.run(MainActivity.java:61)
08-06 15:21:56.485 4057-4092/com.example.ik.myapplication W/System.err:at java.lang.Thread.run(Thread.java:761)
这是我的代码 MainActivity.java：
package com.example.ik.myapplication;
import android.annotation.SuppressLint;
import android.content.Intent;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.util.Log;
import android.view.View;
import android.widget.*;
import java.math.BigInteger;
import java.security.MessageDigest;
import java.security.NoSuchAlgorithmException;
import java.sql.*;
import java.util.ArrayList;
public class MainActivity extends AppCompatActivity
AdminPage test = new AdminPage();
public String md5(String text) throws NoSuchAlgorithmException
MessageDigest messageDigest = MessageDigest.getInstance("MD5");
messageDigest.reset();
messageDigest.update(text.getBytes());
byte[] digest = messageDigest.digest();
BigInteger bigInt = new BigInteger(1, digest);
String hashtext = bigInt.toString(16);
while (hashtext.length() < 32)
hashtext = "0" + hashtext;
return (hashtext);
@SuppressLint("Assert")
@Override
protected void onCreate(Bundle savedInstanceState)
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
final EditText input_username = (EditText) findViewById(R.id.input_username);
final EditText input_password = (EditText) findViewById(R.id.input_password);
final Button login = (Button) findViewById(R.id.login_button);
login.setOnClickListener(new View.OnClickListener()
@Override
public void onClick(View view)
if (input_username.getText().toString().equals("admin"))
new Thread(new Runnable()
@Override
public void run()
try
Class.forName("com.mysql.jdbc.Driver");
final dbconnect dbconnect = null;
final Statement statement = dbconnect.dbconnection().createStatement(ResultSet.TYPE_SCROLL_INSENSITIVE, ResultSet.CONCUR_READ_ONLY);
Log.e("+===>","before CallableStatement");
String query = "call loginadmin(?,?,?)";
CallableStatement cs=dbconnect.dbconnection().prepareCall(query);
cs.setString(1,input_username.getText().toString());
cs.setString(2,input_password.getText().toString());
cs.registerOutParameter(3,Types.INTEGER);
Log.e("+===>","after CallableStatement");
cs.execute();
final int logging =cs.getInt(3);
Log.e("+====/>", String.valueOf(logging));
runOnUiThread(new Runnable()
@Override
public void run()
if(logging==1)
Intent intent = new Intent(getApplicationContext(), AdminPage.class);
Toast.makeText(MainActivity.this, "WELCOME TO ADMIN PAGE", Toast.LENGTH_LONG).show();
intent.putExtra("admin_username",input_username.getText().toString());
startActivity(intent);
finish();
else
Toast.makeText(MainActivity.this, "Check Your Informations , Please", Toast.LENGTH_LONG).show();
);
catch (SQLException e)
Log.e("+====/>",e.getSQLState());
Log.e("+====/>",e.getMessage());
e.printStackTrace();
catch (ClassNotFoundException e)
e.printStackTrace();
).start();
else
new Thread(new Runnable()
@Override
public void run()
try
Class.forName("com.mysql.jdbc.Driver");
final dbconnect dbconnect = null;
final Statement statement = dbconnect.dbconnection().createStatement(ResultSet.TYPE_SCROLL_INSENSITIVE, ResultSet.CONCUR_READ_ONLY);
String sqlquery = "SELECT * FROM `accounts`";
final ResultSet resultSet = statement.executeQuery(sqlquery);
Account accounts;
String uuid;
final ArrayList<Account> users = new ArrayList<Account>();
while (resultSet.next())
accounts = new Account(resultSet.getString(1), resultSet.getString(3), resultSet.getString(4), resultSet.getString(5), resultSet.getString(6), resultSet.getString(7));
users.add(accounts);
runOnUiThread(new Runnable()
@Override
public void run()
int i = 0;
while (i < users.size())
try
if (users.get(i).getUsername().equals(input_username.getText().toString()) && users.get(i).getPassword().equals(md5(input_password.getText().toString())))
Intent intent = new Intent(getApplicationContext(), UsersPage.class);
Toast.makeText(MainActivity.this, "Welcome to your page " + input_username.getText().toString(), Toast.LENGTH_LONG).show();
try
dbconnect.dbconnection().close();
statement.close();
resultSet.close();
catch (SQLException e)
e.printStackTrace();
intent.putExtra("uuid", users.get(i).getUuid());
intent.putExtra("username", users.get(i).getUsername());
intent.putExtra("salary", users.get(i).getSalary());
intent.putExtra("statue", users.get(i).getStatue());
startActivity(intent);
finish();
break;
catch (NoSuchAlgorithmException e)
e.printStackTrace();
i++;
if (i == users.size())
Toast.makeText(MainActivity.this, "Check your informations please", Toast.LENGTH_SHORT).show();
);
catch (SQLException | ClassNotFoundException e)
e.printStackTrace();
).start();
);
Button forgotten = (Button) findViewById(R.id.forgot);
forgotten.setOnClickListener(new View.OnClickListener()
@Override
public void onClick(View view)
Intent forgotten = new Intent(getApplicationContext(), ForgottenPassword.class);
startActivity(forgotten);
finish();
);
这是我的 dbconnect 类：
package com.example.ik.myapplication;
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.SQLException;
public class dbconnect
private static String username;
private static String password;
private static String mysql;
public static Connection dbconnection() throws SQLException
mysql="jdbc:mysql://10.0.2.2:3306/enterprise";
username="root";
password="borni2019";
return DriverManager.getConnection(mysql,username,password);
这是我的存储过程：
create procedure loginadmin(IN username varchar(50), IN password varchar(50), OUT confirmed int)
begin
if exists(select * from admin_account where enterprise.admin_account.Username = username AND enterprise.admin_account.Password=password) then
set confirmed=1;
else
set confirmed=0;
end if;
end;
谢谢
【问题讨论】：
仅供参考***.com/a/20867215/1207049 【参考方案1】：来自这个链接：
https://coderanch.com/t/305887/databases/SQLException-Callable-statments-supported
您在 Android 上使用的 MySQL 驱动程序的版本似乎较旧。可以试试新的吗？
【讨论】：
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