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Editor to share with you how to transfer postman ArrayList to the background. I hope you will get something after reading this article. Let's discuss it together.

Postman passes ArrayList to the backend to accept the following parameters: package com.gpdi.lxq.eladmin.entity.page; import java.util.ArrayList;import java.util.List;import java.util.Map; / * * @ description: paging request * @ author: Lxq * @ date: 17:27 on 2020-1-19 * / public class PageRequest {/ * * current page number * / private int pageNum = 1 / * number of pages * / private int pageSize = 10; public List getParams () {return params;} public void setParams (List params) {this.params = params;} / * query parameters * / private List params = new ArrayList (); public int getPageNum () {return pageNum } public void setPageNum (int pageNum) {this.pageNum = pageNum;} public int getPageSize () {return pageSize;} public void setPageSize (int pageSize) {this.pageSize = pageSize;} public Object getParam (String key) {return getParams (). Get (0) .get (key);}} the format of parameters in Postman is shown below

Remember Key: Content-Type Value: application/json in .headers

Done ~

The argument passed by Postman is that a List is referenced in the List type entity class.

Generics are other entity classes

When the parameter is a List collection

The format of parameters in Postman is shown as follows:

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