GET mode: Pass data parameters in the URL string itself, can directly read directly from 'query_string', high efficiency, but lack of security, and cannot handle complex data (only string, For example, in Servlet / JSP, you cannot process functions such as Vector, such as a vector, such as a Vector of the Vector);
POST mode: In terms of transmission methods, the parameters will be packaged in the datagram, read from the environment variable of Content_Length, facilitate transmitting larger data, because not exposed data in the address bar of the browser, security relative Higher, but such processing efficiency will be affected.
