Java 调用Mysql dump 备份数据库

SimpleDateFormat sdf = new SimpleDateFormat("yyyyMMddHHmmss");

try {


String name = sdf.format(new Date());
String filePath = System.getProperty("user.dir") + "//" + name + ".sql";


// 系统执行器
Runtime rt = Runtime.getRuntime();


// 导出数据库语句
StringBuffer cmd = new StringBuffer();
cmd.append("mysqldump -u");
cmd.append(ServeConfig.dbUser);
cmd.append(" -p");
cmd.append(ServeConfig.dbPass);
cmd.append(" --set-charset=utf8 ");
cmd.append(ServeConfig.dbName);


// 执行导出获取输入流
Process child = rt.exec(cmd.toString());
InputStream in = child.getInputStream();
InputStreamReader ir = new InputStreamReader(in,"utf8");


// 输出文件
FileOutputStream fo = new FileOutputStream(filePath);
OutputStreamWriter os = new OutputStreamWriter(fo,"utf8");


// 开始读取数据
char[] temp = new char[1024000];
int len = 0;
while ((len = ir.read(temp)) > 0) {
os.write(temp,len);
os.flush();
}


// 别忘记关闭输入输出流
in.close();
ir.close();
os.close();
fo.close();


// 将文件发送到备份服务器
FileUpLoad upload = FileUpLoad.createFileUpLoad(ServeConfig.backAddr,new File(filePath));
upload.tryStart();
upload.waitFinish();
upload.doClose();


} catch (Exception e) {
e.printStackTrace();
}