After IIS is released, the handle file cannot be found. Error 404

I encountered a strange problem yesterday. There was no problem with the development environment. After I published it to iis7.5, the SAVE operation failed. The trace found that the handle method could not be found and an error was thrown.

After thinking about a lot of methods, I finally resolved the problem caused by the suspected get method and customer data. After I changed it to the post method, the problem was solved.

Here, let's review the difference between get and post:

1. Get is to get data from the server, and post is to send data to the server. 2. Get is to add the parameter data queue to the URL referred to by the Action attribute of the submission form. The values correspond to each field in the form one by one and can be seen in the URL. Post uses the http post mechanism to place fields in the form and their content in the HTML header and send them to the URL address referred to by the Action attribute. You cannot see this process. 3. For the get method, the server uses request. querystring to obtain the value of the variable. For the POST method, the server uses request. Form to obtain the submitted data. 4. The data volume transmitted by get is small and cannot exceed 2 kb. The amount of data transmitted by post is large, which is generally not restricted by default. Theoretically, the maximum size of IIS4 is 80 KB, and that of iis5 is 100kb. 5. Low get security and high post security. However, the execution efficiency is better than the POST method. Suggestion: 1. The get method is more secure than the POST method. If it contains confidential information, we recommend that you use the post data submission method. 2. We recommend that you use the get method for data query; we recommend that you use the POST method when adding, modifying, or deleting data;