一个无聊的需求是需要在后台把一个树形结构拼成json字符串。记录一下这个过程:
把下面那张图的数据列表拼成这样的串:
{"children":[{"children":[{"children":[ ],"id":"4","name":"d","pid":"2"},{"children":[ ],"id":"5","name":"e","pid":"2"}],"id":"2","name":"b","pid":"1"},{"children":[{"children":[ ],"id":"6","name":"f","pid":"3"}],"id":"3","name":"c","pid":"1"}],"id":"1","name":"a","pid":""}
json在线格式化查看工具可以用:http://tool.lu/json/
说下代码实现,先写个VO:
public class T {private String......
阅读全文