Java通过substring截取指定字符

package com.shucha.deveiface.biz.test;

import com.sdy.common.utils.StringUtil;

/**
 * @author tqf
 * @Description
 * @Version 1.0
 * @since 2022-05-17 11:14
 */
public class test2 {
    public static void main(String[] args) {
        String name = "mysql_表名_ddd_2";
        System.out.println(tableNameSubString(name));
    }

    /**
     * 表名截取
     * @param tableName
     * @return
     */
    public static String tableNameSubString(String tableName){
        String name = "";
        if(StringUtil.isNotBlank(tableName)) {
            name = tableName.substring(tableName.indexOf("_")+1,
                    tableName.lastIndexOf("_"));
        }
        return name;
    }
}

截取字符为：表名_ddd