Unexpected token o in JSON at position 1 报错原因及解决方
问题描述:
在做登录页面,实现登录功能,返回token值时,提示 Unexpected token o in JSON at position 1
,发现cookie的值为[object Object]
,而不是String字符串类型,无法使用JSON.parse方法,报错。
修改之前的写法:
cookie.set('ucenter',this.loginInfo,{domain: 'localhost'})
错误的cookie值的显示
ucenter=[object%20Object]`
应使用JSON.stringify()
方法,将this.loginInfo
的值转换为字符串,然后才能使用JSON.parse()
方法将其转为json格式。
正确写法:
cookie.set('ucenter',JSON.stringify(this.loginInfo),{domain: 'localhost'})
取cookie的值
//从cookie获取用户信息
var userStr = cookie.get('ucenter')
// 把字符串转换json对象(js对象)
if(userStr) {
this.loginInfo = JSON.parse(userStr)
}
正确的cookie值的显示
ucenter={%22id%22:%221517323423506771969%22%2C%22openid%22:null%2C%22mobile%22:%2213312344321%22%2C%22password%22:%22e10adc3949ba59abbe56e057f20f883e%22%2C%22nickname%22:%22bbbb%22%2C%22sex%22:null%2C%22age%22:null%2C%22avatar%22:%22http://thirdwx.qlogo.cn/mmopen/vi_32/DYAIOgq83eoj0hHXhgJNOTSOFsS4uZs8x1ConecaVOB8eIl115xmJZcT4oCicvia7wMEufibKtTLqiaJeanU2Lpg3w/132%22%2C%22sign%22:null%2C%22isDisabled%22:false%2C%22isDeleted%22:false%2C%22gmtCreate%22:%222022-04-22%2010:04:29%22%2C%22gmtModified%22:%222022-04-22%2010:04:29%22}