PMD所能检测的类型（八大种）
官网链接：点这里
大概共有319条小规则（不算舍弃的规则）
源码包中检测Java的规则所在的位置：pmd-src-6.32.0\pmd-java\src\main\resources\category\java
category/java/XXX.xml/xxxxx
Best Practices：Rules which enforce generally accepted best practices.
执行普遍接受的最佳做法的规则。
Code Style：Rules which enforce a specific coding style.
执行特定编码样式的规则。
Design：Rules that help you discover design issues.
帮助您发现设计问题的规则。
Documentation：Rules that are related to code documentation.
与代码文档相关的规则。
Error Prone：Rules to detect constructs that are either broken, extremely confusing or prone to runtime errors.
用于检测结构的规则，这些构造要么被破坏，要么非常混乱，或者容易出现运行时错误。
Multithreading：Rules that flag issues when dealing with multiple threads of execution.
在处理多个执行线程时标记问题的规则。
Performance：Rules that flag suboptimal code.
标记次优代码的规则。
Security：Rules that flag potential security flaws.
标记潜在安全漏洞的规则。
还有一个快速检测的规则集的源码所在的位置：pmd-src-6.32.0\pmd-java\src\main\resources\rulesets\java
rulesets/java/quickstart.xml
Additional rulesets：附加规则集
quickstart (rulesets/java/quickstart.xml)
PMD的快速启动配置。包括最有可能适用于任何地方的规则。
使用方法
使用xml配置文件配置多条规则
1、在resources目录下写个配置文件 settings.xml(命名无要求)
settings.xml：
<?xml version="1.0"?> <ruleset name="myruleset" xmlns="http://pmd.sourceforge.net/ruleset/2.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://pmd.sourceforge.net/ruleset/2.0.0 https://pmd.sourceforge.io/ruleset_2_0_0.xsd"> <description>My ruleset</description> <rule ref="category/java/codestyle.xml"> <exclude name="WhileLoopsMustUseBraces"/> <exclude name="IfElseStmtsMustUseBraces"/> </rule> <rule ref="category/java/performance.xml"></rule> <rule ref="category/java/bestpractices.xml"/> <!--引用自定义规则--> <rule name="myrule" language="java" message="不能有变量为keafmd的String类型的变量" class="net.sourceforge.pmd.lang.rule.XPathRule"> <description> 自定义规则 </description> <priority>3</priority> <properties> <property name="version" value="2.0"/> <property name="xpath"> <value> <![CDATA[ //VariableDeclaratorId[@Image = "keafmd" and ../../Type[@TypeImage = "String"]] ]]> </value> </property> </properties> </rule> <!-- Rules here ... --> </ruleset>
2、configuration.setRuleSets(“settings.xml”); 引用规则集
package com.keafmd; import net.sourceforge.pmd.PMD; import net.sourceforge.pmd.PMDConfiguration; import java.util.UUID; /** * Keafmd * * @ClassName: PmdExample * @Description: * @author: 牛哄哄的柯南 * @Date: 2021-03-22 15:01 * @Blog: https://keafmd.blog.csdn.net/ */ public class PmdExample { public static void main(String[] args) { /*PMDConfiguration configuration = new PMDConfiguration(); configuration.setInputPaths("D:/javaworkspace/pdm-test04/src/main/java/com/keafmd/test01"); configuration.setRuleSets("rulesets/java/quickstart.xml"); configuration.setReportFormat("html"); configuration.setReportFile("D:/pmdreport/pmd-report.html"); PMD.doPMD(configuration);*/ String fileName ; // 重新生成文件名（根据具体情况生成对应文件名） fileName = UUID.randomUUID()+"_"+"pmd-report.html"; PMDConfiguration configuration = new PMDConfiguration(); configuration.setInputPaths("D:\\javaworkspace\\pmd-test04\\src\\main\\java\\com\\keafmd\\test01\\Test01.java"); //configuration.setRuleSets("rulesets/java/quickstart.xml"); //configuration.setRuleSets("src/main/java/com/keafmd/pmd/myrule.xml"); configuration.setRuleSets("settings.xml"); configuration.setReportFormat("html"); configuration.setReportFile("D:/pmdreport/"+fileName); PMD.doPMD(configuration); } }
使用setRuleSets配置多条规则
例如：
configuration.setRuleSets("category/java/bestpractices.xml"); configuration.setRuleSets("category/java/codestyle.xml");
完整代码：
package com.keafmd; import net.sourceforge.pmd.PMD; import net.sourceforge.pmd.PMDConfiguration; import java.util.UUID; /** * Keafmd * * @ClassName: PmdExample * @Description: * @author: 牛哄哄的柯南 * @Date: 2021-03-22 15:01 * @Blog: https://keafmd.blog.csdn.net/ */ public class PmdExample { public static void main(String[] args) { /*PMDConfiguration configuration = new PMDConfiguration(); configuration.setInputPaths("D:/javaworkspace/pdm-test04/src/main/java/com/keafmd/test01"); configuration.setRuleSets("rulesets/java/quickstart.xml"); configuration.setReportFormat("html"); configuration.setReportFile("D:/pmdreport/pmd-report.html"); PMD.doPMD(configuration);*/ String fileName ; // 重新生成文件名（根据具体情况生成对应文件名） fileName = UUID.randomUUID()+"_"+"pmd-report.html"; PMDConfiguration configuration = new PMDConfiguration(); configuration.setInputPaths("D:\\javaworkspace\\pmd-test04\\src\\main\\java\\com\\keafmd\\test01\\Test01.java"); //configuration.setRuleSets("rulesets/java/quickstart.xml"); //configuration.setRuleSets("src/main/java/com/keafmd/pmd/myrule.xml"); //configuration.setRuleSets("settings.xml"); configuration.setRuleSets("category/java/bestpractices.xml"); configuration.setRuleSets("category/java/codestyle.xml"); configuration.setReportFormat("html"); configuration.setReportFile("D:/pmdreport/"+fileName); PMD.doPMD(configuration); } }
以上就是自定义PMD检测的类型集合（详解）的全部内容。
