wx.request({  
      url: 'http://localhost:8090/DemoProject/myTest.do',  
      data:{},  
      method:'POST',  
      header: {  
        'content-type': 'application/x-www-form-urlencoded'  
      },  
      success: function (res) {  
        console.log(res.data)  
      }  
    })