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  • JSON和对象或集合间的转换

    1. pom.xml

    <dependency>  
        <groupId>net.sf.json-lib</groupId>  
        <artifactId>json-lib</artifactId>  
        <version>2.4</version>  
        <classifier>jdk15</classifier>  
    </dependency>  

    2. JSON和对象/集合间的转换

    public static void main(String[] args) {
        User user = new User();  
        user.setNickname("aaaa");  
        user.setPswd("bbb");  
        List<User> userList = new ArrayList<User>();  
        userList.add(user);  
        // 对象 --> JSONObject / JSONArray  
        JSONObject jsonObject = JSONObject.fromObject(user);  
        System.out.println(jsonObject.toString());  
        JSONArray jsonArray = JSONArray.fromObject(userList);  
        System.out.println(jsonArray.toString());  
        // JSONObject --> 对象 / JSONArray --> 集合  
        User user2 = (User) JSONObject.toBean(jsonObject,User.class);  
        System.out.println(user2.getNickname());  
        User[] userArray = (User[]) JSONArray.toArray(jsonArray,User.class);  
        System.out.println(userArray.length);  
    }
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  • 原文地址:https://www.cnblogs.com/yifanSJ/p/9220797.html
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