Fix Chinese Characters in Java

There are several methods to resolve Chinese encoding issues in Java.

1. Encode using UTF-8: Make sure that the encoding of both the Java file and the IDE are set to UTF-8, you can specify the encoding by adding # -*- coding: utf-8 -*- at the beginning of the file.
2. Using Unicode escape characters: Convert Chinese characters into Unicode escape characters, for example, converting the Chinese character “中” into “\u4E2D”. This method can be used for simple strings, but can become cumbersome and difficult to read for a large number of Chinese characters.
3. Use InputStreamReader and OutputStreamWriter: When performing read and write operations using InputStream and OutputStream, specify the character encoding using InputStreamReader and OutputStreamWriter, for example InputStreamReader reader = new InputStreamReader(inputStream, “UTF-8”) and OutputStreamWriter writer = new OutputStreamWriter(outputStream, “UTF-8”).
4. By using the methods String.getBytes() and new String(): you can convert a string into a byte array by specifying the encoding, for example byte[] bytes = str.getBytes(“UTF-8”); you can convert a byte array into a string by specifying the encoding using the new String() method, for example String str = new String(bytes, “UTF-8”).
5. Utilize encoding filters: In a web application, encoding filters can be configured in the web.xml file to encode and decode characters during the request and response process.

These methods can be selected based on specific circumstances to solve the problem of Chinese character encoding.