The difference between get and post requests

It is suggested that servlet in doGet Processing query operations ,doPost, Process update operation

1.get Characteristics of the request ：

(1). The request parameters will be displayed in the browser address bar , unsafe

(2). The request parameters will be added after the resource path , Only a small amount of data can be submitted

(3). On refresh request , There will be no hint

(4).get Get data from the server

2. post Characteristics of the request ：

(1). The request parameters are not displayed in the browser address bar , A relatively safe

(2). The request parameters will be added to the entity content , You can submit a lot of data

(3). On refresh request , A prompt box will pop up , Ask if you need to resubmit

(4).post Is to send data to the server