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Java Json 数据下划线与驼峰格式进行相互转换

 

来源:https://blog.csdn.net/wtopps/article/details/81087157
概述

今天遇见一个需求,需要对json数据进行下划线与驼峰格式之间进行转换,在Fastjson、Jackson、Gson都提供了转换的方式,在这里进行一下列举。

User类:

public class User {

    private String nameInfo;

    private String ageInfo;

    public String getNameInfo() {
        return nameInfo;
    }

    public void setNameInfo(String nameInfo) {
        this.nameInfo = nameInfo;
    }

    public String getAgeInfo() {
        return ageInfo;
    }

    public void setAgeInfo(String ageInfo) {
        this.ageInfo = ageInfo;
    }
}


★ Fastjson: // 生产环境中,config要做singleton处理,要不然会存在性能问题 User user = new User(); user.setNameInfo("coder"); user.setAgeInfo("28"); SerializeConfig config = new SerializeConfig(); config.propertyNamingStrategy = PropertyNamingStrategy.SnakeCase; String json = JSON.toJSONString(user, config); Assert.assertEquals("{\"age_info\":\"28\",\"name_info\":\"coder\"}", json); ★Gson GsonBuilder gsonBuilder = new GsonBuilder(); gsonBuilder.setFieldNamingPolicy(FieldNamingPolicy.LOWER_CASE_WITH_UNDERSCORES); Gson gson = gsonBuilder.create(); User user = new User(); user.setName("coder"); user.setAge(28); String json = gson.toJson(user); Assert.assertEquals("{\"age_info\":\"28\",\"name_info\":\"coder\"}", json);


★Jackson User user = new User(); user.setNameInfo("coder"); user.setAgeInfo("28"); ObjectMapper mapper = new ObjectMapper(); mapper.setPropertyNamingStrategy(com.fasterxml.jackson.databind.PropertyNamingStrategy.SNAKE_CASE); String json = mapper.writeValueAsString(user); Assert.assertEquals("{\"name_info\":\"coder\",\"age_info\":\"28\"}", json);

 

posted on 2019-05-09 09:41  雪洗中关村  阅读(13635)  评论(0编辑  收藏  举报