package com.shangyu.utils;

public class Test {

public static void main(String[] args) {

String str = "松江九亭";

StringBuffer sb = new StringBuffer();

for (int i = 0; i <str.length(); i++) {

if(sb.toString() != null && sb.toString() !=""){

sb.append(",");

}

sb.append(str.charAt(i));

}

String keyword = sb.toString().substring(1);

keyword = keyword.replaceAll(",", "%");

System.out.println(keyword);//结果：松%江%九%亭

}

}

模糊查询sql---->

select * from tb_table where address like '%"+str+"%'

只要查询关键字中包含  这四个字中任意一个  都能被查询到！