Javascript and Ajax Chinese garbled vomiting blood version solution_javascript skills

Today I have been dealing with the Ajax Chinese garbled code problem. There are two types of Ajax garbled code problems:

1. Chinese garbled code output by JavaScript,

For example: alert("Chinese garbled code test");

The solution is relatively simple, which is to set all charset and pageEncoding values ​​in jsp to the same, usually utf-8.

2. The second problem is that the data obtained by Ajax from the server is garbled. (I searched for n hours and tried n methods to find the answer)

Now I will share with you the more effective methods I have collected: (The development environment I use is Eclipse, I believe other languages ​​and development environments are similar.)

For example

var message = xmlHttp.responseText;
alert("message: " message);

The message output is garbled

Solution:

1. Modify the encoding. Remember to back up the code. After changing the encoding, the Chinese will become garbled.

Right-click Properties on the js file, Modify Text file encode to UTF-8 ( This should be the same as the encoding in jsp)

Similarly set the Default encoding of JavaScript source file and JSP to UTF-8 (This should be the same as the encoding in jsp, In this way, future projects will be It is utf-8 encoding, it is recommended to use this)

2. Pay attention to the positional relationship between response.setContentType("text/html;charset=utf-8"); and PrintWriter out = response.getWriter();. Remember to replace PrintWriter out = response.getWriter(); is placed after response.setContentType("text/html;charset=utf-8");, otherwise the set encoding will be invalid, which is why I couldn't figure it out after trying it for a long time! ! !

Problem solved.