如果要使用js读取json文件,那么ajax操作是必须的了。原生ajax有点麻烦,我想你们项目一定用了什么js库,这里给个jquery的例子:
$.get('xx.json路径', function(data){alert(data) // data即为json文件内容里的json数据
}, 'json')
如果把这个文件的内容读取为纯文本,可以修改$.get的最后一个参数json为text,或者删掉这个参数,默认也是text。
var json = { contry:{ area:{ man:"12万", women:"10万" } } }//方式一:使用eval解析
var obj = eval(json)
alert(obj.constructor)
alert(obj.contry.area.women)
//方式二:使用Funtion函数
var strJSON = "{name:'json name'}"//得到的JSON
var obj = new Function("return" + strJSON)()//转换后的JSON对象
alert(obj.name)//json name
alert(obj.constructor)
//复杂一点的json数组数据的解析
var value1 = [{"c01":"1","c02":"2","c03":"3","c04":"4","c05":"5","c06":"6","c07":"7","c08":"8","c09":"9"}, {"c01":"2","c02":"4","c03":"5","c04":"2","c05":"8","c06":"11","c07":"21","c08":"1","c09":"12"}, {"c01":"5","c02":"1","c03":"4","c04":"11","c05":"9","c06":"8","c07":"1","c08":"8","c09":"2"}] var obj1 = eval(value1)
alert(obj1[0].c01)
//复杂一点的json的另一种形式
var value2 = {"list":[ {"password":"1230","username":"coolcooldool"}, {"password":"thisis2","username":"okokok"}], "array":[{"password":"1230","username":"coolcooldool"},{"password":"thisis2","username":"okokok"}]}
var obj2 = eval(value2)
alert(obj2.list[0].password)