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javaparser ½Ìʦ hd-½Ì³ÌÓë²Ù×÷Ö¸ÄÏ

2025-03-21 19:29:17
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JavaParser ʹÓý̳ÌÓë²Ù×÷Ö¸ÄÏ £¬½âÎöJava´úÂëµÄ±Ø±¸¹¤¾ß|

±¾ÎÄÉîÈë½âÎöJavaParser¹¤¾ßµÄ½¹µã¹¦Ð§ÓëÓ¦Óó¡¾° £¬Í¨¹ýÇé¿ö´î½¨¡¢»ù´¡²Ù×÷µ½¸ß¼¶Ó÷¨µÄÍêÕû½Ìѧ £¬×ÊÖú¿ª·¢ÕßÕÆÎÕ´úÂë½âÎöÓëÉú³ÉµÄ½¹µã¼¼Êõ¡£ÎÄÕ°üÀ¨ÊÃ÷ÈÕ½°¸ÀýÑÝʾºÍ³£¼ûÎÊÌâ½â¾ö¼Æ»® £¬ÊʺÏJava¿ª·¢ÕߺÍÈí¼þ¹¤³Ì½Ìѧ²Î¿¼¡£

JavaParser¼ò½éÓë½¹µã¹¦Ð§

JavaParserÊÇ¿ªÔ´µÄJavaÓï·¨½âÎö¹¤¾ß £¬Äܹ»½«JavaÔ´´úÂëת»»ÎªÁýͳÓï·¨Ê÷£¨AST£© £¬Îª´úÂëÆÊÎö¡¢Öع¹ºÍÉú³ÉÌṩ½á¹¹»¯Êý¾ÝÖ§³Ö¡£¸Ã¹¤¾ßÖ§³ÖJava 1.0µ½Java 17µÄÈ«°æ±¾Óï·¨½âÎö £¬¾ß±¸ÍêÉƵÄAST½Úµã»á¼û»úÖÆ £¬¿É¾«×¼Ê¶±ðÀàÉùÃ÷¡¢ÒªÁìÌå¡¢¿ØÖÆÁ÷Óï¾äµÈ´úÂëÔªËØ¡£ÔÚ½Ìѧ³¡¾°ÖÐ £¬½Ìʦ¿Éͨ¹ýJavaParser¹¹½¨½»»¥Ê½´úÂëÆÊÎö°¸Àý £¬×ÊÖúѧÉúÖ±¹ÛÀí½â±àÒëÆ÷ÊÂÇéÔ­Àí¡£Ïà½ÏÓڹŰåÕýÔò±í´ïʽ´¦Àí·½·¨ £¬JavaParserÌṩÀàÐÍÄþ¾²µÄAPI½Ó¿Ú £¬ÄÜÓÐЧÖÆÖ¹Óï·¨ÎóÅÐÎÊÌâ¡£

JavaParserÇé¿ö´î½¨Óë»ù´¡²Ù×÷

ʹÓÃMavenÏîÄ¿¿ÉÔÚpom.xmlÖÐÌí¼Ó×îÐÂÒÀÀµ£¨Ê¾ÀýʹÓÃ3.24.2°æ±¾£©£º

<dependency>
    <groupId>com.github.javaparser</groupId>
    <artifactId>javaparser-core</artifactId>
    <version>3.24.2</version>
</dependency>

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CompilationUnit cu = JavaParser.parse(new File("Demo.java"));
cu.findAll(MethodDeclaration.class).forEach(method -> {
    System.out.println("·¢Ã÷ÒªÁ죺" + method.getName());
});

¸Ã´úÂë¶Î¿É×Ô¶¯É¨ÃèÄ¿±êÎļþÖеÄËùÓÐÒªÁìÉùÃ÷ £¬Êä³ö½á¹û°üÀ¨ÒªÁìÃû³Æ¡¢²ÎÊýÀàÐ͵ÈÔªÊý¾Ý¡£½Ìʦ¿Éͨ¹ý´Ë¹¦Ð§Éè¼Æ´úÂëÉó²éÁ·Ï° £¬×ÊÖúѧÉú¿ìËÙ¶¨Î»´úÂë½á¹¹ÎÊÌâ¡£

JavaParser¸ß¼¶Ó÷¨ÓëÊÃ÷ÈÕ½°¸Àý

ÔÚ×Ô¶¯»¯²âÊÔ³¡¾°ÖÐ £¬¿ÉÀûÓÃASTÐ޸ļ¼ÊõʵÏÖ´úÂëÔöÇ¿¡£ÒÔÏÂʾÀýչʾÈç×÷ÉõËùÓй«¹²ÒªÁìÌí¼ÓÈÕÖ¾Êä³ö£º

cu.findAll(MethodDeclaration.class).stream()
   .filter(m -> m.isPublic())
   .forEach(m -> {
       BlockStmt body = m.getBody().get();
       body.addStatement
(0, ExpressionStmt.parse("Logger.info(\"ÒªÁìÖ´ÐÐ: " + m.getName() + "\")")); });

¸Ã²Ù×÷ÔÚÒªÁìÌåÆðʼλÖòåÈëÈÕÖ¾Óï¾ä £¬¼á³ÖÔ­ÓдúÂëËõ½ø»¨Ñù¡£ÔÚÈí¼þ¹¤³Ì½ÌѧÖÐ £¬¿Éͨ¹ýÀàËÆ°¸Àý½²½âAOP±à³Ì˼Ïë £¬ÑÝʾÈçºÎʵÏÖ·ÇÇÖÈëʽ¹¦Ð§À©Õ¹¡£

JavaParser³£¼ûÎÊÌâÓë½â¾ö¼Æ»®

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ParserConfiguration config = new ParserConfiguration()
    .setSymbolResolver(new JavaSymbolSolver(new ReflectionTypeSolver()));
JavaParser parser = new JavaParser(config);

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