1. Windows->preferences ... Open the Preferences dialog, navigate to the left navigation tree, navigate to General->workspace, right text file encoding, select Other, change to UTF-8, and later create a new project in its Properties dialog box, text file Encoding is the UTF-8.
2. Windows->preferences ... Open the Preferences dialog box, left navigation tree, navigate to general->content Types, right context Types tree, click Text, select Java Source File, under Default Enter UTF-8 in the Encoding input box and click Update to set the Java file encoding to UTF-8. Other Java application development related files such as: properties, XML, etc. have been specified by the Eclipse default, respectively, Iso8859-1,utf-8, such as the development of the need to change the encoding format can be specified here.
3, after the above two steps, the new Java file is UTF-8 encoding, Eclipse compile, run, debug all no problem, but do rcp application product output, or plug-in output, always error, or can not compile through (the output to re-compile), Or the output of the plug-in runtime Chinese display garbled. At this time need to re-rcp application, or plug-in plugin project Build.properties add a line, javacdefaultencoding. = UTF-8. Let the output compile when you know the Java source file UTF-8 encoded. This setting needs to ensure that all Java source files are UTF-8 encoded, and if not all, refer to the Eclipse Help (Plug-in development environment Guide > Reference > Feature and Plug-in Build configuration), it is recommended that all Java source files are UTF-8 encoded.
if plug-in development, RCP application development originally based on other coding, such as GB18030, want to convert to UTF-8, then first, do the above work, and then by looking for the encoding conversion tool, such as Iconv-based batch conversion tool, the original code to convert to UTF-8 encoding, Note that only the Java source file is converted, other types of files may already be more appropriate encoding, the original project properties of the Text file encoding, from the original code to UTF-8.
Eclipse Modification Project default encoding is UTF-8