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我正在寫一些代碼來解析Java源代碼。我正在嘗試Eclipse JDT AST Parser。我的代碼如下。 （解析代碼）。我正在使用Java編寫的Mailer應用程序測試解析器（第二個代碼段）。我的解析器訪問除了generateEmail（）和debug（）方法之外的所有方法。我到處都看過，但我無法理解我的生活爲什麼會發生。誰能告訴我我做錯了什麼？這是一個記憶問題嗎？我沒有得到任何OutOfMemoryExceptionEclipse JDT ASTParser - 問題與方法訪問
我想通過MethodVisitor方法訪問特定的方法來訪問特定方法中的語句和變量。
我的解析代碼
public class RuleEngine {
public static void parse(String file) {
File java = new File(file);
ASTParser parser = ASTParser.newParser(AST.JLS3);
String code = readFile(java);
parser.setSource(code.toCharArray());
parser.setKind(ASTParser.K_COMPILATION_UNIT);
final CompilationUnit cu = (CompilationUnit) parser.createAST(null);
cu.accept(new ASTVisitor() {
public boolean visit(ImportDeclaration id) {
Name imp = id.getName();
debug("import", id.getName().getFullyQualifiedName());
return false;
}
public boolean visit(VariableDeclarationFragment node) {
SimpleName name = node.getName();
debug("var.declaration", (name.getFullyQualifiedName() + ":" + cu.getLineNumber(name.getStartPosition())));
return false; // do not continue
}
public boolean visit(MethodDeclaration method) {
debug("method", method.getName().getFullyQualifiedName());
debug("method.return", method.getReturnType2().toString());
List<SingleVariableDeclaration> params = method.parameters();
for(SingleVariableDeclaration param: params) {
debug("param", param.getName().getFullyQualifiedName());
}
Block methodBlock = method.getBody();
String myblock = methodBlock.toString();
methodVisitor(myblock);
return false;
}
});
}
public static void methodVisitor(String content) {
debug("entering met visitor", "1");
ASTParser metparse = ASTParser.newParser(AST.JLS3);
metparse.setSource(content.toCharArray());
metparse.setKind(ASTParser.K_STATEMENTS);
Block block = (Block) metparse.createAST(null);
block.accept(new ASTVisitor() {
public boolean visit(VariableDeclarationFragment var) {
debug("met.var", var.getName().getFullyQualifiedName());
return false;
}
public boolean visit(SimpleName node) {
debug("SimpleName node", node.getFullyQualifiedName());
return false;
}
public boolean visit(IfStatement myif) {
debug("if.statement", myif.toString());
return false;
}
});
}
public static void debug(String ref, String message) {
System.out.println(ref +": " + message);
}
public static void main(String[]args) {
parse("MailerDaemon.java");
}
這是我的MailerDaemon代碼
public boolean isBccMode() {
return bccMode;
}
public void setBccMode(boolean bccMode) {
this.bccMode = bccMode;
}
public void setServerPort(String serverPortAddr) {
String[] elems = serverPortAddr.split("\\:");
this.setServerAddr(elems[0]);
this.setSmtpPort(elems[1]);
}
public String getServerAddr() {
int i = 0;
return serverAddr;
}
public void setServerAddr(String serverAddr) {
this.serverAddr = serverAddr;
}
public boolean isSslOn() {
return isSslOn;
}
public void setSslOn(boolean isSslOn) {
this.isSslOn = isSslOn;
}
public String getSmtpPort() {
return smtpPort;
}
public void setSmtpPort(String smtpPort) {
this.smtpPort = smtpPort;
}
public String getFromEmail() {
return fromEmail;
}
public void setFromEmail(String fromEmail) {
this.fromEmail = fromEmail;
}
public String getToEmails() {
return toEmails;
}
public void setToEmails(String toEmails) {
this.toEmails = toEmails;
}
public String getUsername() {
return username;
}
public void setUsername(String username) {
this.username = username;
}
public String getPassword() {
return password;
}
public void setPassword(String password) {
this.password = password;
}
public String getSubject() {
return subject;
}
public void setSubject(String subject) {
this.subject = subject;
}
public String getMessage() {
return message;
}
public void setMessage(String message) {
this.message = message;
}
public String getCcList() {
return ccList;
}
public void setCcList(String ccList) {
this.ccList = ccList;
}
public String getBccList() {
return bccList;
}
public void setBccList(String bccList) {
this.bccList = bccList;
}
public String getFile() {
return file;
}
public void setFile(String file) {
debug("filename: " + file);
this.file = file;
}
public void generateEmail() {
Properties props = new Properties();
props.put("mail.smtp.auth", "true");
props.put("mail.smtp.port", this.getSmtpPort());
if(isSslOn()) {
props.put("mail.smtp.socketFactory.port", this.getSmtpPort());
props.put("mail.smtp.socketFactory.class", "javax.net.ssl.SSLSocketFactory");
}
props.put("mail.smtp.host", getServerAddr());
Session session = Session.getDefaultInstance(props, new Authenticator() {
protected PasswordAuthentication getPasswordAuthentication() {
return new PasswordAuthentication(getUsername(), getPassword());
}
});
Message msg = new MimeMessage(session);
try {
msg.setFrom(new InternetAddress(this.getFromEmail()));
if (getToEmails() != null) {
msg.setRecipients(Message.RecipientType.TO, InternetAddress.parse(getToEmails()));
} else if (isBccMode()) {
msg.setRecipients(Message.RecipientType.TO, InternetAddress.parse(getFromEmail()));
}
//msg.setRecipients(Message.RecipientType.CC, InternetAddress.parse(getCcList()));
msg.setSubject(getSubject());
//msg.setText(getMessage());
MimeBodyPart messagePart = new MimeBodyPart();
messagePart.setText(getMessage());
/*
MimeBodyPart attachments = new MimeBodyPart();
FileDataSource fd = new FileDataSource(getFile());
attachments.setDataHandler(new DataHandler(fd));
attachments.setFileName(fd.getName());
*/
Multipart mp = new MimeMultipart();
mp.addBodyPart(messagePart);
//mp.addBodyPart(attachments);
msg.setContent(mp);
Transport.send(msg);
debug("Done. Closing Session...");
} catch (AddressException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (MessagingException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
private static void debug(String message) {
System.out.println("[DEBUG]: " + message);
}
高興它的工作... –