java 实现mysql 的备份与恢复,全部代码

实现mysql 的备份与恢复

只要两个文件(1) JavaMysql.java (2)prop.properties

package mysql;
import java.io.File;
import java.io.IOException;
import java.io.InputStream;
import java.util.Properties;
public class JavaMysql {
     /**
      * 
      * mysql数据备份 接收脚本名，并返回此路径
      * 
      * sql为备份的脚本名比如xxx.sql
      * 
      */
     //备份数据库
     public static void backup(String sql) {
     
      Properties pros = getPprVue("prop.properties");
     
      // 这里是读取的属性文件，也可以直接使用
     
      String username = pros.getProperty("username");
     
      String password = pros.getProperty("password");
     
      // 得到MYSQL的用户名密码后调用 mysql 的 cmd:
     
      String mysqlpaths = pros.getProperty("mysqlpath");
      String databaseName = pros.getProperty("databaseName");
      String address = pros.getProperty("address");
      String sqlpath = pros.getProperty("sql");
      File backupath = new File(sqlpath);
      if (!backupath.exists()) {
       backupath.mkdir();
      }
     
      StringBuffer sb = new StringBuffer();
     
      sb.append(mysqlpaths);
            sb.append("mysqldump ");
      sb.append("--opt ");
      sb.append("-h ");
      sb.append(address);
      sb.append(" ");
      sb.append("--user=");
      sb.append(username);
      sb.append(" ");
      sb.append("--password=");
      sb.append(password);
      sb.append(" ");
      sb.append("--lock-all-tables=true ");
      sb.append("--result-file=");
      sb.append(sqlpath);
      sb.append(sql);
      sb.append(" ");
      sb.append("--default-character-set=utf8 ");
      sb.append(databaseName);
      Runtime cmd = Runtime.getRuntime();
      try {
       Process p = cmd.exec(sb.toString());
      } catch (IOException e) {
       e.printStackTrace();
      }
     
     }
     
     // 读取属性值
     
     public static Properties getPprVue(String properName) {
     
      InputStream inputStream = JavaMysql.class.getClassLoader().getResourceAsStream(properName);
      Properties p = new Properties();
     
      try {
       p.load(inputStream);
       inputStream.close();
      } catch (IOException e) {
       e.printStackTrace();
      }
     
      return p;
     
     }
     //还原备份
     public static void load(String filename) {
      Properties pros = getPprVue("prop.properties");
     
      // 这里是读取的属性文件，也可以直接使用
     
      String root = pros.getProperty("jdbc.username");
     
      String pass = pros.getProperty("jdbc.password");
     
      // 得到MYSQL的用户名密码后调用 mysql 的 cmd:
     
      String mysqlpaths = pros.getProperty("mysqlpath");
      String sqlpath = pros.getProperty("sql");
      String filepath = mysqlpaths + sqlpath + filename; // 备份的路径地址
     
      // 新建数据库finacing
      String stmt1 =mysqlpaths+ "mysqladmin -u " + root + " -p" + pass + " create finacing"; // -p后面加的是你的密码
      String stmt2 = mysqlpaths+"mysql -u " + root + " -p" + pass + " finacing < "+ filepath;
      String[] cmd = { "cmd", "/c", stmt2 };
      try {
       Runtime.getRuntime().exec(stmt1);
       Runtime.getRuntime().exec(cmd);
       System.out.println("数据已从 " + filepath + " 导入到数据库中");
      } catch (IOException e) {
       e.printStackTrace();
      }
     
     }
     
     public static void main(String[] args) throws IOException {
     
//       backup("2221.sql");
//       load("2221.sql");
     
      //load("xx.sql");
     }


}

prop.properties

username = root 
password = 123456
mysqlpath = C://Program Files//MySQL//MySQL Server 5.1//bin//
sql = E://MySQl//
address=localhost
databaseName=oa2

好了，这个就完成了，经过测试的，绝对可以用

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