How to use Jackson to deserialise an array of objects
first create a mapper :
import com.fasterxml.jackson.databind.ObjectMapper;
ObjectMapper mapper = new ObjectMapper();
As Array:
MyClass[] myObjects = mapper.readValue(json, MyClass[].class);
As List:
List<MyClass> myObjects = mapper.readValue(jsonInput, new com.fasterxml.jackson.core.type.TypeReference<List<MyClass>>(){});
Another way to specify the List type:
List<MyClass> myObjects = mapper.readValue(jsonInput, mapper.getTypeFactory().constructCollectionType(List.class, MyClass.class));
How to use Jackson to deserialise an array of objects的更多相关文章
- Array of Objects
You should be comfortable with the content in the modules up to and including the module "Array ...
- Jackson转换为Collection、Array
1. Jackson转化为Array 注意的地方就是实体类一定要有无参的构造方法,否则会报异常 //com.fasterxml.jackson.databind.exc.InvalidDefiniti ...
- Why does typeof array with objects return “Object” and not “Array”?
https://stackoverflow.com/questions/4775722/check-if-object-is-an-array One of the weird behaviour a ...
- The method below converts an array of objects to a DataTable object in C#.
http://www.c-sharpcorner.com/blogs/dynamic-objects-conveting-into-data-table-in-c-sharp1 public stat ...
- TypeReference -- 让Jackson Json在List/Map中识别自己的Object
private Map<String, Object> buildHeaders(Object params) { ObjectMapper objectMapper = JacksonH ...
- Co-variant array conversion from x to y may cause run-time exception
http://stackoverflow.com/questions/8704332/co-variant-array-conversion-from-x-to-y-may-cause-run-tim ...
- [JavaScript] Array.prototype.reduce in JavaScript by example
Let's take a closer look at using Javascript's built in Array reduce function. Reduce is deceptively ...
- iOS 判断数组array中是否包含元素a,取出a在array中的下标+数组方法详解
目前找到来4个解决办法,第三个尤为简单方便 NSArray * arr = @["]; //是否包含 "]) { NSInteger index = [arr indexOfObj ...
- PHP 根据对象属性进行对象数组的排序(usort($your_data, "cmp");)(inside the class: usort($your_data, array($this, "cmp")))
PHP 根据对象属性进行对象数组的排序(usort($your_data, "cmp");)(inside the class: usort($your_data, array($ ...
随机推荐
- Navicat Premium连接各种数据库
版本信息 Navicat Premium 是一套数据库开发工具,让你从单一应用程序中同时连接 MySQL.MariaDB.SQL Server.Oracle.PostgreSQL 和 SQLite 数 ...
- CentOS挂载光盘
mkdir /mnt/cdrom mount /dev/cdrom /mnt/cdrom umount /dev/cdrom /mnt/cdrom 在Ambari集群中配置192.168.0.210: ...
- dubbo系列五、dubbo核心配置
一.配置文件 1.生产者配置provider.xml <?xml version="1.0" encoding="UTF-8"?> <bean ...
- C:详解C中volatile关键字
原文地址:http://www.cnblogs.com/yc_sunniwell/archive/2010/06/24/1764231.html volatile提醒编译器它后面所定义的变量随时都有可 ...
- Tomcat:在centos中做成自启动服务
# 创建一个启动脚本文件,脚本内容见下 vi /etc/init.d/tomcat #!/bin/bash # /etc/rc.d/init.d/tomcat # init script for to ...
- mysql语句判断是否存在记录,没有则插入新纪录否则不执行
1 前言 由于项目需要,当某个表如果有记录,就不执行加入语句,否则加入新纪录(测试数据).思路是:判断表的记录是否为空,然后再决定是否插入 2 代码 DROP PROCEDURE IF EXISTS ...
- Map<String,String>集合的四种遍历方式 其中有一种针对大容量的数据集合
- js篇之对象数据属性与存取器属性
在ECMAScript中,对象属性值可以用一个或两个方法代替,这两个方法就是getter和setter.由getter与与setter定义的属性叫做‘存取器属性’.当程序查询存取器属性的值时,js调用 ...
- LeetCode(38): 报数
Easy! 题目描述: 报数序列是指一个整数序列,按照其中的整数的顺序进行报数,得到下一个数.其前五项如下: 1. 1 2. 11 3. 21 4. 1211 5. 111221 1 被读作 &qu ...
- ubuntu git hub 建立仓库
https://www.cnblogs.com/woider/p/6533709.html 1.安装git apt-get install git 2.配置 Git 用户信息 把用户名和邮箱换成你自己 ...