text
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Connection conn = null;
        String url = "jdbc:mysql://ip地址:3306/数据库名&user=用户名&password=密码&useUnicode=true&characterEncoding=UTF8";
        Class.forName("com.mysql.jdbc.Driver");
        conn = DriverManager.getConnection(url);
        Statement stmt = conn.createStatement();
        String sql = "SHOW TABLE STATUS FROM `数据库名`;";
        ResultSet rs = stmt.executeQuery(sql);
        HashSet<String> tables=new HashSet<String>();
        while (rs.next()) {
            String tname =rs.getString("Name");
            tables.add(tname);
        }
        rs.close();
        for(String tb:tables){            
            stmt.execute("optimize table "+tb);
        }
        stmt.close();

转载于:https://my.oschina.net/jingshishengxu/blog/3089201

原文地址：https://blog.csdn.net/chulict9704/article/details/100759187?ops_request_misc=%257B%2522request%255Fid%2522%253A%2522168904449916800185828444%2522%252C%2522scm%2522%253A%252220140713.130102334.pc%255Fall.%2522%257D&request_id=168904449916800185828444&biz_id=0&utm_medium=distribute.pc_search_result.none-task-blog-2~all~first_rank_ecpm_v1~rank_v31_ecpm-14-100759187-null-null.142^v88^control_2,239^v2^insert_chatgpt&utm_term=java%E4%BC%98%E5%8C%96