mssql数据往mysql导数据时,出现mysql数据为乱码问题?

最新推荐文章于 2022-03-08 19:33:41 发布

最新推荐文章于 2022-03-08 19:33:41 发布 · 121 阅读

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#MySQL #SQL #JDBC #Java #Microsoft

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本文介绍了一种解决从SQL Server导入数据到MySQL时出现乱码的方法。通过调整JDBC连接字符串中的字符集参数，成功解决了数据迁移过程中的编码问题。

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import java.io.UnsupportedEncodingException;
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.sql.Statement;

public class TempClass {

/**
* @param args
* @throws UnsupportedEncodingException
* @throws ClassNotFoundException
* @throws SQLException
*/
public static void main(String[] args) throws UnsupportedEncodingException {
  String url = "jdbc:microsoft:sqlserver://localhost:1433;databaseName=tran";
  try {
   Class.forName("com.microsoft.jdbc.sqlserver.SQLServerDriver");
   Connection conn = DriverManager.getConnection(url, "sa", "sa");
   Statement st = conn.createStatement();
   ResultSet rs = st.executeQuery("select vcword from cn_other");

   // mysql
   String url_mysql = "jdbc:mysql://127.0.0.1:3306/zwspace";
   Class.forName("org.gjt.mm.mysql.Driver");
   Connection conn_mysql = DriverManager.getConnection(url_mysql,
     "root", "root");
   PreparedStatement st_mysql = conn_mysql
     .prepareStatement("insert into chds_cihui(name) values(?)");

if (rs.next()) {

    String rsname = rs.getString("vcword");
    // String name = new String(rsname.getBytes("GB2312"),
    // "GB2312");
    // String name = new String(rsname.getBytes("UTF-8"), "GB2312");
    // String name = new String(rsname.getBytes("utf8"), "GB2312");
    // String name = new String(rsname.getBytes("iso-8859-1"),
    // "GB2312");
    // String name = new String(rsname.getBytes("GBK"), "GB2312");

    // String name = new String(rsname.getBytes("GBK"), "GBK");
    // String name = new String(rsname.getBytes("GB2312"), "GBK");
    // String name = new String(rsname.getBytes("UTF-8"), "GBK");
    // String name = new String(rsname.getBytes("iso-8859-1"),
    // "GBK");

    // String name = new String(rsname.getBytes("GBK"), "UTF-8");
    // String name = new String(rsname.getBytes("GB2312"), "UTF-8");
    // String name = new String(rsname.getBytes("UTF-8"), "UTF-8");
    // String name = new String(rsname.getBytes("iso-8859-1"),
    // "UTF-8");

    // String name = new String(rsname.getBytes("GBK"),
    // "iso-8859-1");
    // String name = new String(rsname.getBytes("GB2312"),
    // "iso-8859-1");
    // String name = new String(rsname.getBytes("UTF-8"),
    // "iso-8859-1");
    // String name = new String(rsname.getBytes("iso-8859-1"),
    // "iso-8859-1");

    // String name = new String(rsname.getBytes(), "GBK");
    // String name = new String(rsname.getBytes(), "GB2312");
    // String name = new String(rsname.getBytes(), "UTF-8");
    // String name = new String(rsname.getBytes(), "iso-8859-1");
    String name = rsname;

System.out.println(rsname);

    st_mysql.setString(1, name);
    st_mysql.executeUpdate();
   }
   rs.close();
   st.close();
   conn.close();

st_mysql.close();
conn_mysql.close();

  } catch (ClassNotFoundException e) {
   e.printStackTrace();
  } catch (SQLException e) {
   e.printStackTrace();
  }
}

}

试过以上的所有编码都无法解决数据在MYSQL中的乱码问题,看来是jdbc连mysql时的编码不对,于是
将 String url_mysql="jdbc:mysql://127.0.0.1:3306/zwspace";后加上编码
String url_mysql="jdbc:mysql://127.0.0.1:3306/zwspace?useUnicode=true&characterEncoding=utf8";终于OK了