gradle checkstyle 추가

build.gradle

@@ -6,6 +6,7 @@ plugins {
     id 'war'
 	id 'com.diffplug.eclipse.apt' version '3.41.1'
 	id 'project-report'
+    id 'checkstyle'
 }
 
 group 'com.eactive'
@@ -36,6 +37,10 @@ java {
 	}
 }
 
+checkstyle {
+    toolVersion = '8.45.1'
+}
+   
 compileJava {
 	options.encoding = 'UTF-8'
 	options.compilerArgs = ['-parameters']
@@ -256,3 +261,11 @@ eclipse {
 		}
 	}
 }
+
+
+tasks.withType(Checkstyle) {
+    reports {
+        xml.required = false
+        html.required = true
+    }
+}

config/checkstyle/checkstyle.xml

@@ -0,0 +1,17 @@
+<!DOCTYPE module PUBLIC
+        "-//Checkstyle//DTD Checkstyle Configuration 1.3//EN"
+        "https://checkstyle.org/dtds/configuration_1_3.dtd">
+
+<module name="Checker">
+    <module name="TreeWalker">
+
+        <!-- System.out.print / println 금지 -->
+        <module name="Regexp">
+            <property name="format" value="System\.out\.print" />
+            <property name="message" value="Do not use System.out.print / println" />
+            <property name="ignoreComments" value="true"/>
+            <property name="illegalPattern" value="true"/>
+        </module>
+
+    </module>
+</module>