java中使用mysqldump 备份数据库

Posted 2022-01-11 youyouxiaosheng-lh

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java中使用mysqldump 备份数据库: 见代码

String hostIP = "127.0.0.1";
String userName = "root";
String password = "123456";
String savePath = "C:/Users/Administrator/Desktop/";
String fileName = "SetofBook"+new SimpleDateFormat("yyyyMMddHHmmss").format(new Date())+".sql";
String databaseName = "sss";
File saveFile = new File(savePath);
// 如果目录不存在
if (!saveFile.exists()) 
    // 创建文件夹
    saveFile.mkdirs();

if(!savePath.endsWith(File.separator))
    savePath = savePath + File.separator;


PrintWriter printWriter = null;
BufferedReader bufferedReader = null;
try 
    printWriter = new PrintWriter(new OutputStreamWriter(new FileOutputStream(savePath + fileName), "utf8"));
    Process process = Runtime.getRuntime().exec(" mysqldump -h" + hostIP + " -u" + userName + " -p" + password + " --set-charset=UTF8 " + databaseName);
    InputStreamReader inputStreamReader = new InputStreamReader(process.getInputStream(), "utf8");
    bufferedReader = new BufferedReader(inputStreamReader);
    String line;
    while((line = bufferedReader.readLine())!= null)
        printWriter.println(line);
    
    printWriter.flush();
    //0 表示线程正常终止。
    if(process.waitFor() == 0)
        return true;
    
catch (Exception e) 
    e.printStackTrace();
 finally 
    try 
        if (bufferedReader != null) 
            bufferedReader.close();
        
        if (printWriter != null) 
            printWriter.close();
        
     catch (IOException e) 
        e.printStackTrace();