eclipse巧用正则表达式替换

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Logger log = Logger\.getLogger$(.*)\.class$;
DMSLogger log =LogServiceImpl.getInstance($1.class).getLogger();

eclipse巧用正则表达式替换

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eclipse

正则表达式EclipseJavaBlog工作

在工作中，经常碰到重构代码，有些事情明明很简单，但要改的东西太多了，重复工作量太大，所以学点技巧是灰常有用的

首先在Person.java中有这些静态常量,注意至少有40多个静态常量

Java代码

...
public static final String PREFERENCE_HIDE_HELP_BLOG = "PREFERENCE_HIDE_HELP_BLOG";// 29;
public static final String PREFERENCE_HIDE_HELP_DOCUMENT = "PREFERENCE_HIDE_HELP_DOCUMENT";// 30;
public static final String PREFERENCE_SEND_EMAIL_IN_PLAIN = "PREFERENCE_SEND_EMAIL_IN_PLAIN";// 31;
public static final String PREFERENCE_BROTHERS_ON_SITREPS = "PREFERENCE_BROTHERS_ON_SITREPS";// 32;
...

...    public static final String PREFERENCE_HIDE_HELP_BLOG    = "PREFERENCE_HIDE_HELP_BLOG";// 29;    public static final String PREFERENCE_HIDE_HELP_DOCUMENT    = "PREFERENCE_HIDE_HELP_DOCUMENT";// 30;    public static final String PREFERENCE_SEND_EMAIL_IN_PLAIN   = "PREFERENCE_SEND_EMAIL_IN_PLAIN";// 31;    public static final String PREFERENCE_BROTHERS_ON_SITREPS   = "PREFERENCE_BROTHERS_ON_SITREPS";// 32; ...

要把这些静态常量移到Perference.java里，然后问题就来了，在Person.java有大量地方调用了这些静态常量，如果一个一个去改的话，就只有

了，这时就用eclispe的正则替换吧
如图：

很简单的两句话，就成功替换所有要改的静态常量

下面来个复杂点的

要把这一类的方法转换一下（很多，有80多个）

Java代码

...
public void setSendEmailBirthday(boolean p) throws JawaCodeException { //Birthday Emails
setPreference(Preference.PREFERENCE_SEND_BIRTHDAY_EMAILS, p);
}
public void setSendAnnouncement(boolean p) throws JawaCodeException { //Announcement
setPreference(Preference.PREFERENCE_SEND_ANNOUNCEMENT, p);
}
...

...  public void setSendEmailBirthday(boolean p) throws JawaCodeException { //Birthday Emails    setPreference(Preference.PREFERENCE_SEND_BIRTHDAY_EMAILS, p);  }  public void setSendAnnouncement(boolean p) throws JawaCodeException { //Announcement    setPreference(Preference.PREFERENCE_SEND_ANNOUNCEMENT, p);  }...

变成这个样子

Java代码

public void setSendEmailBirthday(boolean p) throws JawaCodeException { //Birthday Emails
Keyword preferenceType = new Keyword(Keyword.PROPERTY_STRINGVAL, Preference.PREFERENCE_SEND_BIRTHDAY_EMAILS);
setPreference(preferenceType, p);
}
public void setSendAnnouncement(boolean p) throws JawaCodeException { //Announcement
Keyword preferenceType = new Keyword(Keyword.PROPERTY_STRINGVAL, Preference.PREFERENCE_SEND_ANNOUNCEMENT);
setPreference(preferenceType, p);
}

    public void setSendEmailBirthday(boolean p) throws JawaCodeException { //Birthday Emails        Keyword preferenceType = new Keyword(Keyword.PROPERTY_STRINGVAL, Preference.PREFERENCE_SEND_BIRTHDAY_EMAILS);setPreference(preferenceType, p);    }     public void setSendAnnouncement(boolean p) throws JawaCodeException { //Announcement        Keyword preferenceType = new Keyword(Keyword.PROPERTY_STRINGVAL, Preference.PREFERENCE_SEND_ANNOUNCEMENT);setPreference(preferenceType, p);    }

用下列正则表达式就行了：

现在是不是很方便了，不用正则表达式我想怎么也得半个多小时才能做完吧，还容易出错，用了正则表达式只用几分钟，我觉得很COOL

eclipse巧用正则表达式替换

Logger log = Logger\.getLogger\((.*)\.class\);DMSLogger log =LogServiceImpl.getInstance($1.class).getLogger();

eclipse巧用正则表达式替换

Logger log = Logger\.getLogger\((.*)\.class\);
DMSLogger log =LogServiceImpl.getInstance($1.class).getLogger();