wx.request({

url: "http://192.168.1.110:9060/power/oauth/token",

method: "POST",

data: {

username: "admin",

password: "123456",

grant_type: "password",

client_id: "eureka-client",

client_secret: "123456"

},

header: {

'content-type': 'application/json' // 默认值

},

success: function (res) {

console.log( res);

}

});

改成 'content-type': 'application/x-www-form-urlencoded;charset=UTF-8'

就可以了