怎么给List中的对象都加上单引号呢 htht555 2017-11-08 01:44:00 List<Object> List= DBUtil.getResultFieldValues(conn, sql1); 然后我把它转成String了 String s1 = Pattern.compile("\\b([\\w\\W])\\b").matcher(List.toString()).replaceAll("'$1'"); [059A04515BA04BFE876C4B70C023DD99, A04B42248BFA41C0B34474CD930416F9, 1DD461021A3646978520BDFA52A0B685] 接下来怎么搞，试了好多方法不行啊 ...全文 808 13 打赏 收藏 怎么给List<Object>中的对象都加上单引号呢 List List= DBUtil.getResultFieldValues(conn, sql1); 然后我把它转成String了 String s1 = Pattern.compile("\\b([\\w\\W])\\b").matcher(List.toString()).replaceAll("'$1'"); [059A04515BA04BFE876C4B70C023DD99, A04B42248BFA41C0B34474CD930416F9, 1DD461021A364 复制链接 扫一扫 分享 转发到动态 举报 写回复 配置赞助广告取 消 确 定 用AI写文章 13 条回复 切换为时间正序 请发表友善的回复… 发表回复 打赏红包 需支付: 0.00 元 取 消 确 定 _sean 2017-11-09 打赏举报 回复 张悟空o 2017-11-09 打赏举报 回复 来。。。。。。。。。。。。 htht555 2017-11-09 打赏举报 回复 还有没有人啊 凑个整 Sunyiban 2017-11-08 打赏举报 回复 老廉颇尚能饭否 2017-11-08 打赏举报 回复 CopyOnWriteArrayList是个好东西 扛着扫把闯天下 2017-11-08 打赏举报 回复 自问自答。可以的 繁华终归落尽 2017-11-08 打赏举报 回复 来把皮卡丘 cat_yan 2017-11-08 打赏举报 回复 为散分打call~~ 街头诗人1 2017-11-08 打赏举报 回复 楼主自导自演。。。 htht555 2017-11-08 打赏举报 回复 List<String> b =new ArrayList<String>(); for (String string : List1) { b.add("'"+string+"'"); } String List = Pattern.compile("\\b([\\w\\W])\\b").matcher(b.toString().substring(1,b.toString().length()-1)).replaceAll("'$1'"); 刚发完，发现自己太粗心，写错了！！！搞定了，各位随便说点什么吧，我把分散了！！ htht555 2017-11-08 打赏举报 回复 写错了 我转成 List<String> strs = new ArrayList<String>(); for (int i = 0; i < List.size(); i++) { strs.add(String.valueOf(List.get(i))); } List<String>了，然后怎么搞？ 试了还几个都不可以啊？ JSON String转为List＜Object＞ A JSONObject text must begin with ‘{’ at 1 [character 2 line 1] 解决办法： 先转成jsonArray，然后转为List集合，其他同理 // An highlighted block JSONArray jsonArray = JSONArray.fromObject(你的String);//把String转换为json List<你的实体类> list = JSONArray.toList(jsonArray,你的实体类.class 给list中的每个元素加上单引号 给list中的每个元素加上单引号 用stream流 String ids = listA.stream().map(s -> "\'" + s + "\'").collect(Collectors.joining(", ")); 查询全部返回List列表以及$和# 通用查询列表 mybatis的xml文件中： mysql库 <select id="getQueueInfo" parameterType="java.util.Map" resultType="java.util.Map"> select a.diagnosis_no ,right(a.queue_no,4) as queue_no,b.patient_name,a.`statu... 集合 List接口的方法简介 集合中的List方法简介arraylist与vector的区别这两个类都实现了List接口（List接口继承了Collection接口），他们都是有序集合，即存储在这两个集合中的元素的位置都是有顺序的，相当于一种动态的数组，我们以后可以按位置索引号取出某个元素，并且其中的数据是允许重复的，这是HashSet之类的集合的最大不同处，HashSet之类的集合不可以按索引号去检索其中的元素，也不允许有重复 python3<5>2的值为_python3学习笔记(2)----python的数据类型 1、python3的基本数据类型Python 中的变量不需要声明。每个变量在使用前都必须赋值，变量赋值以后该变量才会被创建。在 Python 中，变量就是变量，它没有类型，我们所说的"类型"是变量所指的内存中对象的类型。等号(=)用来给变量赋值。等号(=)运算符左边是一个变量名,等号(=)运算符右边是存储在变量中的值。例如：#!/usr/bin/python3counter = 100 ... 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[htht555]

List<Object> List= DBUtil.getResultFieldValues(conn, sql1);
然后我把它转成String了
String s1 = Pattern.compile("\\b([\\w\\W])\\b").matcher(List.toString()).replaceAll("'$1'");
[059A04515BA04BFE876C4B70C023DD99, A04B42248BFA41C0B34474CD930416F9, 1DD461021A3646978520BDFA52A0B685]
接下来怎么搞，试了好多方法不行啊

[htht555]

写错了 我转成 List<String> strs = new ArrayList<String>(); for (int i = 0; i < List.size(); i++) { strs.add(String.valueOf(List.get(i))); } List<String>了，然后怎么搞？ 试了还几个都不可以啊？

[htht555]

List<String> b =new ArrayList<String>(); for (String string : List1) { b.add("'"+string+"'"); } String List = Pattern.compile("\\b([\\w\\W])\\b").matcher(b.toString().substring(1,b.toString().length()-1)).replaceAll("'$1'"); 刚发完，发现自己太粗心，写错了！！！搞定了，各位随便说点什么吧，我把分散了！！

[街头诗人1]

楼主自导自演。。。

[cat_yan]

为散分打call~~

[繁华终归落尽]

来把皮卡丘

[扛着扫把闯天下]

自问自答。可以的

[老廉颇尚能饭否]

CopyOnWriteArrayList是个好东西

[Sunyiban]

[htht555]

还有没有人啊 凑个整

[张悟空o]

来。。。。。。。。。。。。

[_sean]