checkstyle.xml

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE module PUBLIC
    "-//Puppy Crawl//DTD Check Configuration 1.2//EN"
    "http://www.puppycrawl.com/dtds/configuration_1_2.dtd">
	<!--
		Copyright 2008 the EasyAnt project See the NOTICE file distributed
		with this work for additional information regarding copyright
		ownership. Licensed under the Apache License, Version 2.0 (the
		"License"); you may not use this file except in compliance with the
		License. You may obtain a copy of the License at

		http://www.apache.org/licenses/LICENSE-2.0 Unless required by
		applicable law or agreed to in writing, software distributed under the
		License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR
		CONDITIONS OF ANY KIND, either express or implied. See the License for
		the specific language governing permissions and limitations under the
		License.
	-->

	<!--

		Checkstyle configuration that checks the sun coding conventions from:

		- the Java Language Specification at
		http://java.sun.com/docs/books/jls/second_edition/html/index.html -
		the Sun Code Conventions at http://java.sun.com/docs/codeconv/ - the
		Javadoc guidelines at
		http://java.sun.com/j2se/javadoc/writingdoccomments/index.html - the
		JDK Api documentation http://java.sun.com/j2se/docs/api/index.html -
		some best practices Checkstyle is very configurable. Be sure to read
		the documentation at http://checkstyle.sf.net (or in your downloaded
		distribution). Most Checks are configurable, be sure to consult the
		documentation. To completely disable a check, just comment it out or
		delete it from the file. Finally, it is worth reading the
		documentation.
	-->

<module name="Checker">
	<!--检查文件是否是UTF-8格式-->
    <property name="charset" value="UTF-8"/>
	<!-- 检查property文件中是否有相同的key。 -->
	<module name="Translation"/>
	
	<module name="TreeWalker">
		<!-- Checks for Naming Conventions.                  -->
        
        <!-- Checks for imports                              -->
        <!--
        	检查是否有重复的import。 
        <module name="RedundanImport"/>
         -->
        <module name="AvoidStarImport"/>
        
        <!-- Checks for whitespace                               -->
        
        <!-- Modifier Checks                                    -->
        
        <!-- Checks for blocks.          -->
        <module name="LeftCurly"/>
        <module name="RightCurly"/>
        
        <!-- Checks for common coding problems               -->
        
        <!-- if最多嵌套3层 -->
        <module name="NestedIfDepth">
            <property name="max" value="2"/>
        </module>	
        
        <!-- Checks for class design                         -->
        <module name="FinalClass"/>
     
        
        <!-- Miscellaneous other checks.                   -->
        <module name="UpperEll"/>
        
        
	</module>
	
</module>