//保存数据 function save(){ var contact = new Object; contact.user_name = document.getElementById("user_name").value; contact.mobilephone = document.getElementById("mobilephone").value; contact.company = document.getElementById("company").value; var str = JSON.stringify(contact); localStorage.setItem(contact.mobilephone,str); loadAll();} //查找数据 function find(){var search_phone = document.getElementById("search_phone").value;var name = localStorage.getItem(search_phone);var mobilephone = localStorage.key(name);var str = localStorage.getItem(contact.mobilephone); var contact = JSON.parse(str);var find_result = document.getElementById("find_result"); find_result.innerHTML = search_phone + "的机主是：" +contact.user_name; } 在查询数据的代码中想要通过JSON.parse()来获取准确的储存在本地上的值,但是那里错误呢?
4 回答
千巷猫影
TA贡献1829条经验 获得超7个赞
contact对象没有定义，localStorage.key方法乱用
你的数据结构里头mobilephone===search_phone，不然localStorage取出来的是null哇，要判断一下的
1 2 3 4 5 6 7 | function find(){ var str=localStorage[document.getElementById("search_phone").value]; if(str){ var contact=JSON.parse(str); document.getElementById("find_result").innerHTML=contact.mobilephone+"的机主是：" +contact.user_name; } } |
蓝山帝景
TA贡献1843条经验 获得超7个赞
<html>
<body>
<h2>通过 JSON 字符串来创建对象</h3>
<p>
text1: <span id="text1"></span><br />
text2: <span id="text2"></span><br />
</p>
<script type="text/javascript">
var txt = '{"message":"the response was sucessful","type":"success"}';
obj = JSON.parse(txt);
document.getElementById("text1").innerHTML=obj.message
document.getElementById("text2").innerHTML=obj.type
</script>
</body>
</html>
慕姐8265434
TA贡献1813条经验 获得超2个赞
$.ajax({
type: "POST",
url:"/i/ajax/get_cp_data",
success: function(data) {
if (data) {
var json = $.parseJSON(data);
cat_obj.success(json);
}
}
});
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