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新增数据库备份工具类
2023-02-08 18:21:09 +08:00
parent c04e322f7c
commit 9d54140617
2 changed files with 154 additions and 11 deletions
--- a/zyplayer-doc-db/src/main/java/com/zyplayer/doc/db/framework/utils/DatabaseBackupUtils.java
+++ b/zyplayer-doc-db/src/main/java/com/zyplayer/doc/db/framework/utils/DatabaseBackupUtils.java
@@ -0,0 +1,124 @@
+package com.zyplayer.doc.db.framework.utils;
+
+import java.io.*;
+import java.time.LocalDate;
+
+/**
+ * 数据库备份恢复工具类
+ *
+ * @author diantu
+ * @since 2023年2月8日
+ */
+public class DatabaseBackupUtils {
+
+    /**
+     * MySQL数据库导出
+     *
+     * @param hostIP MySQL数据库所在服务器地址IP
+     * @param userName 进入数据库所需要的用户名
+     * @param password 进入数据库所需要的密码
+     * @param savePath 数据库导出文件保存路径
+     * @param fileName 数据库导出文件文件名
+     * @param databaseName 要导出的数据库名
+     * @return 返回true表示导出成功，否则返回false。
+     */
+    public static boolean exportDatabaseForMysql(String mysqldumpPath, String hostIP, String userName, String password, String savePath, String fileName, String databaseName) throws InterruptedException {
+        File saveFile = new File(savePath);
+        if (!saveFile.exists()) {// 如果目录不存在
+            saveFile.mkdirs();// 创建文件夹
+        }
+        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(" "+mysqldumpPath+"/mysqldump -h" + hostIP + " -u" + userName + " -p" + password + " " + databaseName);
+            InputStreamReader inputStreamReader = new InputStreamReader(process.getInputStream(), "utf8");
+            bufferedReader = new BufferedReader(inputStreamReader);
+            String line;
+            while((line = bufferedReader.readLine())!= null){
+                printWriter.println(line);
+            }
+            printWriter.flush();
+            if(process.waitFor() == 0){//0 表示线程正常终止。
+                return true;
+            }
+        }catch (IOException e) {
+            e.printStackTrace();
+        } finally {
+            try {
+                if (bufferedReader != null) {
+                    bufferedReader.close();
+                }
+                if (printWriter != null) {
+                    printWriter.close();
+                }
+            } catch (IOException e) {
+                e.printStackTrace();
+            }
+        }
+        return false;
+    }
+
+    public static void backup(String savePath) {
+        File file = new File(savePath);
+        if (!file.exists()) {
+            file.mkdirs();
+        }
+        String fileName = savePath + "/" + LocalDate.now() + ".sql";
+        /** 默认使用linux*/
+        //String cmdPrefix = "/bin/sh -c ";
+        String c1 = "/bin/sh";
+        String c2 = "-c";
+        String os_name = System.getProperty("os.name");
+        // 判断是否是windows系统
+        if (os_name.toLowerCase().startsWith("win")){
+            //cmdPrefix = "cmd /c ";
+            c1 = "cmd";
+            c2 = "/c";
+        }
+        //参考示例：# /usr/local/mysql/bin/mysqldump -uroot -p123456 -P3306 shuju > shuju.sql
+        String cmd = "mysqldump" // mysqldump的绝对路径，配置环境变量，直接写mysqldump即可
+                + " -h" + "127.0.0.1"      // 数据库端口号
+                + " -P" + "3306"      // 数据库端口号
+                + " -u" + "root"  // 数据库用户名
+                + " -p" + "root" // 数据库密码
+                + " " + "zyplayer_doc_manage"      // 数据库名
+                + " > " + fileName;                   // 最终写入的文件路径
+        try {
+            System.out.println("第一个参数 " + c1);
+            System.out.println("第二个参数 " + c2);
+            System.out.println("具体命令 " + cmd);
+
+            //log.error("数据库备份START" + LocalDateTime.now());
+            /**
+             * exec重载方法有一个参数的，window下执行正常，linux下无法完成备份。
+             * 使用多参数重载方法都可以正常备份
+             */
+            Process process = Runtime.getRuntime().exec(new String[]{c1, c2, cmd});
+            process.waitFor();
+            //log.error("数据库备份END" + LocalDateTime.now());
+        } catch (Exception e) {
+            e.printStackTrace();
+            //log.error("数据库备份失败:{}", e.getMessage());
+        }
+    }
+
+
+    public static void main(String[] args){
+        try {
+            if (exportDatabaseForMysql("C:/Program Files/MySQL/MySQL Server 5.7/bin","127.0.0.1", "root", "root", "D:/backupDatabase", "2023-2-8.sql", "zyplayer_doc_manage")) {
+                System.out.println("数据库成功备份！！！");
+            } else {
+                System.out.println("数据库备份失败！！！");
+            }
+        } catch (InterruptedException e) {
+            e.printStackTrace();
+        }
+        //backup("D:/backupDatabase");
+    }
+}