优化同步数据库

src/main/java/cn/qg/holmes/service/effect/impl/DatabaseSyncServiceImpl.java

@@ -215,102 +215,17 @@ public class DatabaseSyncServiceImpl implements DatabaseSyncService {
      */
     @Override
     public boolean syncDbToDest(String ip, String port, String username, String password, String dbName, String namespace, boolean businessData) {
-        String driver = "com.mysql.jdbc.Driver";
-        String url = "jdbc:mysql://" + ip + ":" + port;
-
-        String dbRedisKey = dbSyncPrefix + dbName;
-        String tableListKey = dbSyncPrefix + dbName + ":tables";
-
-        Connection connection = null;
-        Connection newConnection = null;
-        PreparedStatement preparedStatement = null;
-
         try {
-            Class.forName(driver);
-//            connection = DriverManager.getConnection(url, username, password);
-
-            // 删除原有数据库
-//            String dropDbSql = String.format("DROP DATABASE IF EXISTS %s", dbName);
-//            log.info("删除原有数据库：{}", dropDbSql);
-//            preparedStatement = connection.prepareStatement(dropDbSql);
-//            preparedStatement.execute();
-
-            // 重新创建数据库
-//            String createDbSql = redisUtils.get(dbRedisKey).toString();
-//            log.info("重新创建数据库：{}", createDbSql);
-//            preparedStatement = connection.prepareStatement(createDbSql);
-//            preparedStatement.execute();
-//            connection.close();
-
-            // 重新设置连接，并指定数据库
-            newConnection = DriverManager.getConnection(url + "/" + dbName, username, password);
-            newConnection.setAutoCommit(false);
-
+            String tableListKey = dbSyncPrefix + dbName + ":tables";
             List<String> tableList = Arrays.asList(redisUtils.get(tableListKey).toString().split("\n"));
-            Statement statement = newConnection.createStatement();
-            // 循环处理每个表
+            if (tableList.size() > 0) {
                 for (String tableName: tableList) {
-                log.info("开始同步表：{}", tableName);
-                long dataStartTime = System.currentTimeMillis();
                     syncSingleTableToDest(ip, port, username, password, dbName, tableName, businessData);
-//                String createTableKey = dbSyncPrefix + dbName + ":" + tableName + ":create" ;
-//                String insertTableKey = dbSyncPrefix + dbName + ":" + tableName + ":insert" ;
-//                String createTableValue = redisUtils.get(createTableKey).toString();
-//                String insertTableValue = redisUtils.get(insertTableKey).toString();
-//
-//                // 不为空时才执行建表语句
-//                if (!createTableValue.isEmpty()) {
-//                    statement.execute(createTableValue);
-//                }
-//
-//                // 不为空时才插入数据
-//                if (!insertTableValue.isEmpty()) {
-//                    for (String insertSql: insertTableValue.split("\n")) {
-//                        statement.addBatch(insertSql);
-//                    }
-//                    statement.executeBatch();
-//                    statement.clearBatch();
-//                }
-                long dataEndTime = System.currentTimeMillis();
-                log.info("{}表同步完成，共花费{}秒", tableName, (dataEndTime - dataStartTime) / 1000);
-            }
-
-            // 判断是否需要update
-            if (dbName.equals("cash_loan_flow")) {
-                for (String sql: cashLoanFlowSql.split("\n")) {
-                    log.info("执行update sql: {}", sql);
-                    statement.addBatch(sql);
-                }
-                statement.executeBatch();
-                statement.clearBatch();
-            }
-            if (dbName.equals("contract")) {
-                for (String sql: contractSql.split("\n")) {
-                    log.info("执行update sql: {}", sql);
-                    statement.addBatch(sql);
-                }
-                statement.executeBatch();
-                statement.clearBatch();
-            }
-            if (dbName.equals("payment_center")) {
-                for (String sql: paymentCenterSql.split("\n")) {
-                    log.info("执行update sql: {}", sql);
-                    statement.addBatch(sql);
                 }
-                statement.executeBatch();
-                statement.clearBatch();
-            }
-            newConnection.commit();
-        } catch (Exception e) {
-            e.printStackTrace();
-        } finally {
-            try {
-                if (newConnection != null) {
-                    newConnection.close();
             }
         } catch (Exception e) {
             e.printStackTrace();
-            }
+            return false;
         }
         return true;
     }
@@ -482,7 +397,7 @@ public class DatabaseSyncServiceImpl implements DatabaseSyncService {
 
             // 仅同步表结构，并保留业务数据
             if (businessData) {
-                log.info("本次同步{}.{}表，保留业务数据", dbName, tableName);
+                log.info("开始同步{}.{}表，保留业务数据", dbName, tableName);
                 // 如果已有该数据库
                 if (dbList.contains(dbName)) {
                     List<String> tableList = getTableListByDb(ip, port, username, password, dbName);
@@ -629,6 +544,7 @@ public class DatabaseSyncServiceImpl implements DatabaseSyncService {
 
         } catch (Exception e) {
             e.printStackTrace();
+            log.info("表{}.{}同步失败.", dbName, tableName);
             return false;
         } finally {
             try {
@@ -645,6 +561,7 @@ public class DatabaseSyncServiceImpl implements DatabaseSyncService {
                 e.printStackTrace();
             }
         }
+        log.info("表{}.{}同步完成.", dbName, tableName);
         return true;
     }