Urgent , Post or Get method?

Question

hello all;
when i deploy a servelt on growser with the GET method , the servlet is working all right, but when i use POST method (to change database) , i have error , please tell me how and when i use Post method?

Answer 1

GET and POST are two different ways of passing data from a browser to a server. With the GET method, the browser constructs a Query String (?var1=val&var2=val...) which is passed to the server as part of the URL. With the POST method, the data from the browser is passed via standard input to the server. You determine which method is used when you build the HTML form:
<FORM ACTION="/path/action_servlet" METHOD="POST">
OR
<FORM ACTION="/path/action_servlet" METHOD="GET">
<INPUT TYPE="TEXT" NAME="var1">
<INPUT TYPE="TEXT" NAME="var2">
<INPUT TYPE="SUBMIT">
</FORM>
In the case of servlets, either the doGet() or doPost() method will be executed depending on how the data is passed from the browser.
In general, use the GET method for debugging or if you want the client to be able to bookmark the entire URL (with parameters). If you have an application where you are "changing the database", you probably want to use the POST method.
-- Brian
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