Linux java mysql 定时备份和手动备份 (一 )
项目中需要备份与还原mysql数据库,mysql数据库在linux 服务器中.
功能包括,1.手动备份 2.自动备份(按照指定时间自动备份,单位为周或者小时) 3.还原数据库(还原数据库不能在程序还原,虽然代码中有涉及测试一部分但是没执行) 4.删除备份
开始还考虑到linux系统和windows系统兼容,但是时间越来越紧迫,许多未完善部分未实现,比如用户手动备份时,数据库过大,出现阻塞现象如何解决,删除备份未找到文件等等等等!只能暂时先实现功能,这块也本身不是太重要.....有时间优化吧!!!!!!!!!!!!!!就这样
首先备份要有工具类,里面判断windows的那个忽略掉吧
1 package cn.goldencis.tsa.common.utils; 2 3 import java.io.BufferedReader; 4 import java.io.File; 5 import java.io.FileOutputStream; 6 import java.io.IOException; 7 import java.io.InputStreamReader; 8 import java.io.OutputStreamWriter; 9 import java.io.PrintWriter; 10 import java.io.UnsupportedEncodingException; 11 import java.text.SimpleDateFormat; 12 import java.util.Date; 13 14 import org.springframework.web.context.ContextLoader; 15 16 import cn.goldencis.tsa.common.entity.BackupProperties; 17 18 /** 19 * About mysql backup restore.... util class 20 * At first considered the system compatibility(windows and linux), 21 * however, the time was pressing and later added 22 * Note that some of the linux system to complete, 23 * and some of the windows system to complete, so note is english 24 * @author mll 25 * 2017年4月10日上午10:41:48 26 * 27 */ 28 public class BackupUtil { 29 30 boolean isWindows = ServerListener.getInstance().checkOsWindows(); 31 32 private static BackupUtil instance = new BackupUtil(); 33 34 private BackupProperties pro; 35 36 private String allFileName; 37 38 private String fileName; 39 40 private String refileName; 41 42 @Override 43 public String toString() { 44 return "username: "+pro.getUsername()+"\npassword:" +pro.getPassword()+"\ndatabaseName:" +pro.getDatabaseName() 45 +"\nfilePath:" +pro.getWindowsFilePath()+"\n backupFileName:" +pro.getBackupFileName() 46 +"\nbackupFileMsg:" +pro.getBackupFileMsg()+"\nip:" +pro.getIp()+"\nwinFileMysqlPath: "+pro.getWinFileMysqlPath(); 47 } 48 49 private BackupUtil(){ 50 51 } 52 53 public static BackupUtil getInstance(){ 54 instance.setPro((BackupProperties) ContextLoader.getCurrentWebApplicationContext().getBean("backupProperties")); 55 return instance; 56 } 57 58 /** 59 * 拼接备份命令 60 * @author mll 61 * @return String 62 */ 63 private String splitJointBackup(String cfileName){ 64 String str="mysqldump -h "+ pro.getIp() + " -u " +pro.getUsername() + " -p" + pro.getPassword() +" "+ pro.getDatabaseName() ; 65 Date d = new Date(); 66 SimpleDateFormat sdf = new SimpleDateFormat("yyyyMMddHHmmss"); 67 String time=sdf.format(d); 68 if(isWindows){ 69 if(StringUtil.isEmpty(cfileName)){ 70 refileName = pro.getBackupFileName() + time + ".sql"; 71 fileName = pro.getWindowsFilePath() + refileName; 72 73 }else{ 74 refileName = cfileName + time + ".sql"; 75 fileName = pro.getWindowsFilePath() + refileName; 76 } 77 str = pro.getWinFileMysqlPath() + str; 78 79 return str; 80 }else{ 81 if(StringUtil.isEmpty(cfileName)){ 82 refileName = pro.getBackupFileName() + time + ".sql"; 83 fileName = pro.getLinuxFilePath() + refileName; 84 }else{ 85 refileName = cfileName + time + ".sql"; 86 fileName = pro.getLinuxFilePath() + refileName; 87 } 88 return str; 89 } 90 } 91 92 /** 93 * 拼接还原命令 94 * @author mll 95 * @return String 96 */ 97 private String splitJointRestore(String cfileName){ 98 99 String str="mysql -h "+ pro.getIp() + " -u" +pro.getUsername() + " -p" + pro.getPassword() 100 +" "+ pro.getDatabaseName() ; 101 102 if(isWindows){ 103 fileName = pro.getWindowsFilePath() + cfileName; 104 str = pro.getWinFileMysqlPath() + str; 105 106 return str; 107 }else{ 108 fileName = pro.getLinuxFilePath() + cfileName; 109 return str; 110 } 111 } 112 113 /** 114 * FLag is true auto delete 115 * @param cfileName 116 * @param isAuto 117 * @return 118 */ 119 private String splitJoinDeleteBackup(String cfileName){ 120 String str; 121 String arrStr[]=cfileName.split(","); 122 123 StringBuilder sb; 124 125 if(isWindows){ 126 sb = new StringBuilder(); 127 for(String temp:arrStr){ 128 sb.append(pro.getWindowsFilePath() + temp + " "); 129 } 130 str = "del " + sb.toString(); 131 }else{ 132 sb = new StringBuilder(); 133 for(String temp:arrStr){ 134 sb.append(pro.getLinuxFilePath() + temp + " "); 135 } 136 str = "rm " + sb.toString() + " -rf "; 137 } 138 return str; 139 } 140 141 /** 142 * 删除备份 143 * @param cfileName 144 * @param isAuto 145 */ 146 public void deleteBackup(String cfileName){ 147 String cmd = splitJoinDeleteBackup(cfileName); 148 System.out.println(cmd); 149 try { 150 Runtime.getRuntime().exec(cmd); 151 152 } catch (IOException e) { 153 e.printStackTrace(); 154 } 155 } 156 157 158 /** 159 * 备份 160 * @author mll 161 * @param cfileName 162 * @return String 163 */ 164 public String backup(String cfileName) { 165 String cmd = splitJointBackup(cfileName); 166 PrintWriter p = null; 167 BufferedReader reader = null; 168 File filePath = new File(pro.getLinuxFilePath()); 169 FileOutputStream fileout = null; 170 try { 171 if(!filePath.exists()){ 172 filePath.mkdirs(); 173 } 174 fileout = new FileOutputStream(fileName); 175 p = new PrintWriter(new OutputStreamWriter(fileout, "utf8")); 176 Process process = Runtime.getRuntime().exec(cmd); 177 InputStreamReader inputStreamReader = new InputStreamReader(process 178 .getInputStream(), "utf8"); 179 reader = new BufferedReader(inputStreamReader); 180 String line = null; 181 while ((line = reader.readLine()) != null) { 182 p.println(line); 183 } 184 p.flush(); 185 } catch (UnsupportedEncodingException e) { 186 e.printStackTrace(); 187 } catch (IOException e) { 188 e.printStackTrace(); 189 } finally { 190 try { 191 if (reader != null) { 192 reader.close(); 193 } 194 if (p != null) { 195 p.close(); 196 } 197 if (fileout != null) { 198 fileout.close(); 199 } 200 } catch (IOException e) { 201 e.printStackTrace(); 202 } 203 } 204 return refileName; 205 } 206 207 /** 208 * 还原 209 * @author mll 210 * @param cfileName void 211 */ 212 public void restore(String cfileName) { 213 String cmd = splitJointRestore(cfileName); 214 try { 215 System.out.println(cmd + "<"+fileName); 216 //Process runtimeProcess = Runtime.getRuntime().exec(cmd + "<"+fileName); 217 218 Process process = Runtime.getRuntime().exec("mysql -u root -proot -h 192.168.3.89 goldencis_tsa </opt/tsa/backup/1111492136868475.sql"); 219 220 // 输出执行结果 221 InputStreamReader in = new InputStreamReader(process.getInputStream()); 222 BufferedReader br = new BufferedReader(in); 223 String line; 224 while((line = br.readLine()) != null){ 225 System.out.println(line); 226 } 227 br.close(); 228 in.close(); 229 230 // 输出错误信息 231 InputStreamReader in2 = new InputStreamReader(process.getErrorStream()); 232 BufferedReader br2 = new BufferedReader(in2); 233 String line2 ; 234 while((line2 = br2.readLine()) != null){ 235 System.out.println("="+line2); 236 } 237 br2.close(); 238 in2.close(); 239 } catch (UnsupportedEncodingException e) { 240 e.printStackTrace(); 241 } catch (IOException e) { 242 e.printStackTrace(); 243 } 244 } 245 246 public String getAllFileName() { 247 return allFileName; 248 } 249 250 public void setAllFileName(String allFileName) { 251 this.allFileName = allFileName; 252 } 253 254 255 public BackupProperties getPro() { 256 return pro; 257 } 258 259 public void setPro(BackupProperties pro) { 260 this.pro = pro; 261 } 262 263 public String getFileName() { 264 return fileName; 265 } 266 267 public String getRefileName() { 268 return refileName; 269 } 270 271 public void setRefileName(String refileName) { 272 this.refileName = refileName; 273 } 274 }
工具类中的BackupProperties
1 package cn.goldencis.tsa.common.entity; 2 3 import java.io.File; 4 5 public class BackupProperties { 6 7 private String username; //数据库登陆名 8 private String password; //数据库密码 9 private String databaseName; //数据库名 10 private String windowsFilePath; //备份的路径 11 private String linuxFilePath; //备份的路径 12 private String backupFileName; //备份的文件名 13 private String backupFileMsg; //备份文件的信息 14 private String ip; //ip 15 private String winFileMysqlPath; //windows下mysql安装路径一直到bin 16 17 18 public String getUsername() { 19 return username; 20 } 21 public void setUsername(String username) { 22 this.username = username; 23 } 24 public String getPassword() { 25 return password; 26 } 27 public void setPassword(String password) { 28 this.password = password; 29 } 30 public String getDatabaseName() { 31 return databaseName; 32 } 33 public void setDatabaseName(String databaseName) { 34 this.databaseName = databaseName; 35 } 36 37 public String getWinFileMysqlPath() { 38 return winFileMysqlPath; 39 } 40 41 public void setWinFileMysqlPath(String winFileMysqlPath) { 42 if (!winFileMysqlPath.endsWith(File.separator)) { 43 this.winFileMysqlPath = winFileMysqlPath + File.separator; 44 } 45 this.winFileMysqlPath = winFileMysqlPath; 46 } 47 48 public String getIp() { 49 return ip; 50 } 51 52 public void setIp(String ip) { 53 this.ip = ip; 54 } 55 56 public String getBackupFileName() { 57 return backupFileName; 58 } 59 60 public void setBackupFileName(String backupFileName) { 61 this.backupFileName = backupFileName; 62 } 63 64 public String getBackupFileMsg() { 65 return backupFileMsg; 66 } 67 68 public void setBackupFileMsg(String backupFileMsg) { 69 this.backupFileMsg = backupFileMsg; 70 } 71 public String getWindowsFilePath() { 72 return windowsFilePath; 73 } 74 public void setWindowsFilePath(String windowsFilePath) { 75 this.windowsFilePath = windowsFilePath; 76 } 77 public String getLinuxFilePath() { 78 return linuxFilePath; 79 } 80 public void setLinuxFilePath(String linuxFilePath) { 81 this.linuxFilePath = linuxFilePath; 82 } 83 }
spring-context.xml
1 <bean id="backupProperties" class="cn.goldencis.tsa.common.entity.BackupProperties"> 2 <property name="username" value="${backup.username}"/> 3 <property name="password" value="${backup.password}"/> 4 <property name="databaseName" value="${backup.databaseName}"/> 5 <property name="linuxFilePath" value="${backup.linuxFilePath}"/> 6 <property name="windowsFilePath" value="${backup.windowsFilePath}"/> 7 <property name="backupFileName" value="${backup.backupFileName}"/> 8 <property name="backupFileMsg" value="${backup.backupFileMsg}"/> 9 <property name="ip" value="${backup.ip}"/> 10 <property name="winFileMysqlPath" value="${backup.winFileMysqlPath}"/> 11 </bean>
搞完这些,除了还原和自动备份不能用之外其他都是可以用的(linux下)
