[Desenvolvimento Android] Análise GSON

Método comum

• toJson- converter objeto bean em string json
• fromJson- converter string json em objeto bean

Adicionar dependência

dependencies {

    implementation 'com.google.code.gson:gson:2.8.6'

}

Conversão de tipo

    private fun parseByGSON() {
    
    
        //1. 添加依赖
        //2. 实例化一个GSON对象（工具对象）
        val gson = Gson()
        //3. toJson：将对象变为json字符串
        val book = Book("myBook", "author", "content")
        val str = gson.toJson(book)
        Log.e("TAG", str)

        //4. fromJson
        val book2 = gson.fromJson(str, Book::class.java)
        Log.e("TAG", "$book2========")
        Log.e("TAG", "title: " + book2.title + " ,content: " + book2.content)
        object : Thread() {
    
    
            override fun run() {
    
    
                super.run()
                val msg = get()
                val t = gson.fromJson(msg, Test::class.java)
                Log.e("TAG", "$t=====")
                Log.e("TAG", t.status.toString() + "---" + t.msg + "----" + t.data.content)
            }
        }.start()
    }