利用 druid 的 sql parser 模块解析 sql 语句

package com.test.mvn.sql_parser;
 
import java.util.List;
 
import com.alibaba.druid.sql.SQLUtils;
import com.alibaba.druid.sql.ast.SQLStatement;
import com.alibaba.druid.sql.dialect.mysql.visitor.MySqlSchemaStatVisitor;
import com.alibaba.druid.util.JdbcConstants;
 
 
/**
 * Hello world!
 *
 */
public class App {
 
    public static void main(String[] args) {
 
        // String sql = "update t set name = ‘x‘ where id < 100 limit 10";
        // String sql = "SELECT ID, NAME, AGE FROM USER WHERE ID = ? limit 2";
        // String sql = "select * from tablename limit 10";
 
        String sql = "select user from emp_table";
        String dbType = JdbcConstants.MYSQL;
 
        //格式化输出
        String result = SQLUtils.format(sql, dbType);
        System.out.println(result); // 缺省大写格式
        List<SQLStatement> stmtList = SQLUtils.parseStatements(sql, dbType);
 
        //解析出的独立语句的个数
        System.out.println("size is:" + stmtList.size());
        for (int i = 0; i < stmtList.size(); i++) {
 
            SQLStatement stmt = stmtList.get(i);
            MySqlSchemaStatVisitor visitor = new MySqlSchemaStatVisitor();
            stmt.accept(visitor);
 
            //获取表名称
            System.out.println("Tables : " + visitor.getCurrentTable());
            //获取操作方法名称
            System.out.println("Tables : " + visitor.getTables());
            //获取字段名称
            System.out.println("fields : " + visitor.getColumns());
        }
 
    }
 
}

mvn install -Dmaven.javadoc.skip=true -Dmaven.test.skip=true