• 目录
  Gradle <一> 介绍
  Gradle <二> 之groovy基础语法
  Gradle <三> 之groovy集合篇
  Gradle <四> 之groovy面向对象
  Gradle <五> 之groovy数据解析
  Gradle <六> 之Gradle 生命周期监听
  Gradle <七> 之Gradle 关于project
  Gradle <八> 之Gradle 项目实战-自动化构建工程
  Gradle <九> 之Gradle 项目实战-自动化打包

Groovy数据解析

一、json解析

class People {
    String name
    Integer age
}


def personList = [new People(name: '哈哈', age: 28), new People(name: 'groovy', age: 6)]

//将对象解析成json字符串
def result = JsonOutput.toJson(personList)
println result //[{"age":28,"name":"哈哈"},{"age":6,"name":"groovy"}]

println JsonOutput.prettyPrint(result) //格式化输出
/**
 [
    {
        "age": 28,
        "name": "java"
    },
    {
        "age": 6,
        "namgovy"
    }
 ]
 */
 
 
//将json字符串传化为对象
def jsonSlurper = new JsonSlurper()
def objectResult = (ArrayList<Person>) jsonSlurper.parseText(result)
Person p = objectResult[0]
println "the name is $p.name,the age is $p.age" //输出结果：the name is java,the age is 28

• 请求网络数据并解析

def getNetWorkData(String url) {
    //发送http请求（此处用原生的，也可导入okHttp库进行网络操作）
    HttpURLConnection connection = (HttpURLConnection) new URL(url).openConnection()
    connection.setConnectTimeout(10000)
    connection.setRequestMethod('GET')
    connection.connect()
    BufferedReader bufferedReader = new BufferedReader(new InputStreamReader(connection.getInputStream()))
    StringBuffer stringBuffer = new StringBuffer()
    String json = ""
    while ((json = bufferedReader.readLine()) != null) {
        stringBuffer.append(json)
    }
    String rsp = new String(stringBuffer.toString().getBytes(), "UTF-8")
    //解析
    def jsonSlurper = new JsonSlurper()
    return jsonSlurper.parseText(rsp)
}


/*
{"data":[{"desc":"一起来做个App吧","id":10,"imagePath":"http://www.wanandroid.com/blogimgs/50c115c2-cf6c-4802-aa7b-a4334de444cd.png","isVisible":1,"order":2,"title":"一起来做个App吧","type":0,"url":"http://www.wanandroid.com/blog/show/2"},{"desc":"","id":4,"imagePath":"http://www.wanandroid.com/blogimgs/ab17e8f9-6b79-450b-8079-0f2287eb6f0f.png","isVisible":1,"order":0,"title":"看看别人的面经，搞定面试~","type":1,"url":"http://www.wanandroid.com/article/list/0?cid=73"},{"desc":"","id":3,"imagePath":"http://www.wanandroid.com/blogimgs/fb0ea461-e00a-482b-814f-4faca5761427.png","isVisible":1,"order":1,"title":"兄弟，要不要挑个项目学习下?","type":1,"url":"http://www.wanandroid.com/project"},{"desc":"","id":6,"imagePath":"http://www.wanandroid.com/blogimgs/62c1bd68-b5f3-4a3c-a649-7ca8c7dfabe6.png","isVisible":1,"order":1,"title":"我们新增了一个常用导航Tab~","type":1,"url":"http://www.wanandroid.com/navi"},{"desc":"","id":2,"imagePath":"http://www.wanandroid.com/blogimgs/90cf8c40-9489-4f9d-8936-02c9ebae31f0.png","isVisible":1,"order":2,"title":"JSON工具","type":1,"url":"http://www.wanandroid.com/tools/bejson"},{"desc":"","id":5,"imagePath":"http://www.wanandroid.com/blogimgs/acc23063-1884-4925-bdf8-0b0364a7243e.png","isVisible":1,"order":3,"title":"微信文章合集","type":1,"url":"http://www.wanandroid.com/blog/show/6"}],"errorCode":0,"errorMsg":""}
*/

class Root {
    List<Data> data
    int errorCode
    String errorMsg

    class Data {
        String desc
        int id
        String imagePath
        int isVisible
        int order
        String title
        int type
        String url
    }
}

Root root = getNetWorkData("http://www.wanandroid.com/banner/json")
println root.data[0].imagePath //输出结果：http://www.wanandroid.com/blogimgs/50c115c2-cf6c-4802-aa7b-a4334de444cd.png

//以上是类似java的做法，而在Groovy中，不需要写实体类，可直接使用里面的字段
def response = getNetWorkData("http://www.wanandroid.com/banner/json")
println response.data[0].imagePath //输出结果：http://www.wanandroid.com/blogimgs/50c115c2-cf6c-4802-aa7b-a4334de444cd.png