package com.zr.test;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
public class Test {
public static void main(String[] args){
String sqlFragment = "insert into t_role(role_id,role_name,"
+ "role_level,org_id,role_type,role_status,add_user_id,"
+ "add_time,upd_user_id,upd_time) values(#{id},"
+ "${role_name},${role_level},${org_id},${role_type},"
+ "${role_status},"
+ "#E{accId},#{dateInt},#{accId},#E{dateInt})";
Pattern pattern = Pattern.compile("#E\\{[\\w]*\\}");
Matcher matcher = pattern.matcher(sqlFragment);
//循环，字符串中有多少个符合的，就循环多少次
while(matcher.find()){
//每一个符合正则的字符串
String e = matcher.group();
//截取出括号中的内容
String substring = e.substring(3, e.length()-1);
//字符串截取
CharSequence subSequence = sqlFragment.subSequence(matcher.start(0), matcher.end(0));
System.out.println("开始位置:"+matcher.start(0)+" 结束位置:"+matcher.end(0));
System.out.println(subSequence.toString());
System.out.println(e);
//进行替换
sqlFragment = sqlFragment.replaceAll("\\#E\\{"+substring+"\\}", "123123498496416");
//此句代码与上句代码结果一致
// sqlFragment = sqlFragment.replace(e, "123123");
}
System.out.println(sqlFragment);
}
}
