2019-12-13更新

2024-04-21 12:32:10 +00:00 · 2019-12-15 17:55:12 +08:00
parent cb4a2839c2
commit ee52957d31
71 changed files with 547 additions and 1986 deletions
@@ -0,0 +1,111 @@
+package cn.hellohao.utils;
+
+import org.apache.ibatis.io.Resources;
+import org.apache.ibatis.jdbc.ScriptRunner;
+
+import java.io.IOException;
+import java.sql.*;
+import java.util.Properties;
+
+
+final class RunSqlScript {
+
+    public static  String DBDRIVER = "com.mysql.cj.jdbc.Driver";
+    public static  String DBURL ;
+    //现在使用的是mysql数据库，是直接连接的，所以此处必须有用户名和密码
+    public static  String USERNAME ;
+    public static  String PASSWORD ;
+
+    public static Integer RunSelectCount(String sql) {
+        Integer count = 0;
+        //数据库连接对象
+        Connection conn = null;
+        //数据库操作对象
+        Statement stmt = null;
+        //1、加载驱动程序
+        try {
+            Class.forName(DBDRIVER);
+        } catch (ClassNotFoundException e) {
+            e.printStackTrace();
+        }
+        //2、连接数据库
+        //通过连接管理器连接数据库
+        try {
+            //在连接的时候直接输入用户名和密码才可以连接
+            conn = DriverManager.getConnection(DBURL,USERNAME,PASSWORD);
+        } catch (SQLException e) {
+            e.printStackTrace();
+        }
+        //3、向数据库中插入一条数据
+        //String sql = "select count(*) from information_schema.columns where table_name = 'config' and column_name = 'id'";
+        try {
+            stmt = conn.createStatement();
+        } catch (SQLException e) {
+            e.printStackTrace();
+        }
+        //4、执行语句
+        try {
+            //stmt.executeUpdate(sql);
+            ResultSet resultSet = stmt.executeQuery(sql);
+            if(resultSet.next()){
+                count = resultSet.getInt(1);
+            }
+        } catch (SQLException e) {
+            e.printStackTrace();
+            return -1;
+        }
+        //5、关闭操作
+        try {
+            stmt.close();
+            conn.close();
+        } catch (SQLException e) {
+            e.printStackTrace();
+        }
+        return count;
+    }
+
+
+    //insert操作
+    public static Integer RunInsert(String sql) {
+        Integer count = 0;
+        //数据库连接对象
+        Connection conn = null;
+        //数据库操作对象
+        Statement stmt = null;
+        //1、加载驱动程序
+        try {
+            Class.forName(DBDRIVER);
+        } catch (ClassNotFoundException e) {
+            e.printStackTrace();
+        }
+        //2、连接数据库
+        //通过连接管理器连接数据库
+        try {
+            //在连接的时候直接输入用户名和密码才可以连接
+            conn = DriverManager.getConnection(DBURL,USERNAME,PASSWORD);
+        } catch (SQLException e) {
+            e.printStackTrace();
+        }
+        try {
+            stmt = conn.createStatement();
+        } catch (SQLException e) {
+            e.printStackTrace();
+        }
+        //4、执行语句
+        try {
+            count = stmt.executeUpdate(sql);
+        } catch (SQLException e) {
+            e.printStackTrace();
+        }
+        //5、关闭操作
+        try {
+            stmt.close();
+            conn.close();
+        } catch (SQLException e) {
+            e.printStackTrace();
+        }
+        return count;
+    }
+
+
+}