将{"123","456"}集合转化为('123','456')

需求分析

优化接口时,需要手动拼接sql去调取神策的接口获取数据。好比将List<String> = {"123","456"}集合转化为('123','456')。

 1 public class test3 {
 2 
 3     public static void main(String[] args) {
 4         String s = convertListToString(Arrays.asList("123", "456"));
 5         System.out.println("转化后：" + "(" + s + ")");
 6     }
 7 
 8     /**
 9      * 需求分析：优化接口时,需要手动拼接sql去调取神策的接口获取数据
10      * 将List<String> = {"123","456"}集合转化为('123','456')
11      */
12     public static String convertListToString(List<String> strlist) {
13         StringBuilder sb = new StringBuilder();
14         if (!CollectionUtils.isEmpty(strlist)) {
15             for (int i = 0; i < strlist.size(); i++) {
16                 if (i == 0) {
17                     sb.append("'").append(strlist.get(i)).append("'");
18                 } else {
19                     sb.append(",").append("'").append(strlist.get(i)).append("'");
20                 }
21             }
22         }
23         return sb.toString();
24     }
25 
26 }
View Code

运行结果

 

posted @ 2022-09-22 19:55  JustJavaIt  阅读(145)  评论(0)  编辑  收藏  举报