android之xml对象到json对象的转化

电玩女神 2022-08-27 02:24 81阅读 0赞

section这个对象的xml格式如下
    <section>
    	<title>Book-Signing Event</title>
    	<signing>
    		<author title="Mr" name="Vikram Seth"/>
    		<book title="A Suitable Boy" price="$22.95"/>
    	</signing>
    	<signing>
    		<author title="Dr" name="Oliver Sacks"/>
    		<book title="The Island" price="$12.95"/>
    	</signing>
    </section>
    把上面的section对象转化成json对象
    1.首先section作为一个对象
    var s = {
    	section:{
    		
    	}
    };
    2.它里面具有title,siging这两个属性
    var s = {
    	section:{
    		"title": "Book-Signing Event",
    		"signing":
    	}
    };
    3.section这个对象中有两个名字都为signing的属性,所以这两个属性应该是一个数组
    var s = {
    	section:{
    		"title": "Book-Signing Event",
    		"signing": []
    	}
    };
    4.signing这个数组中又有author,book这两个属性,所有author和book又是一个对象,该对象作为数组的一个元素
    var s = {
    	section:{
    		"title": "Book-Signing Event",
    		"signing": [
    			{
    				"author":
    			}
    		]
    	}
    };
    5.author又有title,name两个属性,所以这两个属性又构成了一个对象
    var s = {
    	section:{
    		"title": "Book-Signing Event",
    		"signing": [
    			{
    				"author": {"title": "Mr","name": "Vikram Seth"},
    			}
    		]
    	}
    };
    6.book又有title,price两个属性,所以这两个属性也构成了一个对象
    var s = {
    	section:{
    		"title": "Book-Signing Event",
    		"signing": [
    			{
    				"author": {"title": "Mr","name": "Vikram Seth"},
    				"book":  {"title": "A Suitable Boy","price": "$22.95"}
    			}
    		]
    	}
    };
    7.接下来是另外一个具有author,book两个属性的对象,如下就完成了上面xml到json对对象的转化
    var s = {
    	"section":{
    		"title": "Book-Signing Event",
    		"signing": [
    			{
    				"author": {"title": "Mr","name": "Vikram Seth"},
    				"book":  {"title": "A Suitable Boy","price": "$22.95"}
    			},
    			{
    				"author": {"title": "Dr","name": "Oliver Sacks"},
    				"book":  {"title": "The Island","price": "$12.95"}
    			}
    		]
    	}
    };
    
    //测试
    alert(s.section.title); //Book-Signing Event 
    //测试获取数组元素
    alert(s.section.signing[0].author.title); //Mr