查找文件夹下所有文本是否包含了特定的字符串

叁歲伎倆 2022-12-16 13:12 147阅读 0赞

查找文件夹下所有文本是否包含了特定的字符串, 如果包含了, 就打印文件的全路径.为啥需要这个功能, 其实是为了查找有哪些controller中提供的方法是没有被用到的. 有了这个工具类就不用一个项目一个项目的去搜索了.直接用线程池全量搜索.

依赖于apache的lang3和google的guava的包

import com.google.common.collect.Lists;
    import org.apache.commons.lang3.StringUtils;
    
    import java.io.BufferedReader;
    import java.io.File;
    import java.io.FileInputStream;
    import java.io.IOException;
    import java.io.InputStreamReader;
    import java.util.List;
    import java.util.concurrent.ExecutorService;
    import java.util.concurrent.Executors;
    import java.util.concurrent.TimeUnit;
    
    /**
     * 寻找一个文件夹下所有的以.java结尾的文件中, 是否包含 特定的内容
     *
     * @author zhangke
     * @time 2020年10月20日15:17:05
     */
    public class FinderUtil {
    
        /**
         * 要查找的内容
         */
        private static String searchContext = "CarOwnerInfo";
    
        /**
         * 使用一个大小为100的线程池
         */
        private static ExecutorService service = Executors.newFixedThreadPool(100);
    
    
        public static void main(String[] args) throws InterruptedException {
            getFiles(Lists.newArrayList("D:\\workspace"));
            TimeUnit.SECONDS.sleep(15);
            service.shutdown();
        }
    
    
        /**
         * 遍历一个文件中所有的行, 是否包含要查找的字符串
         */
        public static void findString(String path) {
            //先判断文件是否是以.java结尾的,或者.xml结尾的,不是就不需要判断了
            if (!StringUtils.endsWith(path, ".java") && !StringUtils.endsWith(path, ".xml")) {
                return;
            }
            File file = new File(path);
            //文件为空,直接返回
            if (!file.exists()) {
                return;
            }
            try {
                InputStreamReader inputStreamReader = new InputStreamReader(new FileInputStream(file), "UTF-8");
                BufferedReader reader = new BufferedReader(inputStreamReader);
                // 按行读取字符串
                String line;
                while ((line = reader.readLine()) != null) {
                    if (StringUtils.contains(line, searchContext)) {
                        System.out.println("当前的文件名是:" + path);
                        //找到了就退出
                        break;
                    }
                }
                reader.close();
                inputStreamReader.close();
            } catch (IOException e) {
                e.printStackTrace();
            }
        }
    
        /**
         * 递归获取某路径下的所有文件，文件夹
         */
        public static void getFiles(List<String> paths) {
            //遍历路径
            for (String path : paths) {
                service.submit(() -> {
                    File file = new File(path);
                    // 如果这个路径是文件夹
                    if (file.isDirectory()) {
                        // 获取路径下的所有文件
                        File[] files = file.listFiles();
                        for (int i = 0; i < files.length; i++) {
                            // 如果还是文件夹 递归获取里面的文件 文件夹
                            if (files[i].isDirectory()) {
                                getFiles(Lists.newArrayList(files[i].getPath()));
                            } else {
                                //是文件,直接去查找
                                String absolutePath = files[i].getAbsolutePath();
                                findString(absolutePath);
                            }
                        }
                    } else {
                        //是文件,直接去查找
                        String absolutePath = file.getAbsolutePath();
                        findString(absolutePath);
                    }
                });
            }
        }
    
    
    }

然而我同事自己写的另外一套, 更加的自动化

import java.util.Objects;
    
    /**
     * @author dengfengfeng
     * @date 2020/10/20
     */
    public class FormatOutput {
    
        private String projectName;
        private String className;
        private String methodName;
        private String methodMapping;
    
        public String getProjectName() {
            return projectName;
        }
    
        public void setProjectName(String projectName) {
            this.projectName = projectName;
        }
    
        public String getClassName() {
            return className;
        }
    
        public void setClassName(String className) {
            this.className = className;
        }
    
        public String getMethodName() {
            return methodName;
        }
    
        public void setMethodName(String methodName) {
            this.methodName = methodName;
        }
    
        public String getMethodMapping() {
            return methodMapping;
        }
    
        public void setMethodMapping(String methodMapping) {
            this.methodMapping = methodMapping;
        }
    
        @Override
        public boolean equals(Object o) {
            if (this == o) return true;
            if (o == null || getClass() != o.getClass()) return false;
            FormatOutput that = (FormatOutput) o;
            return Objects.equals(methodMapping, that.methodMapping);
        }
    
        @Override
        public int hashCode() {
            return Objects.hash(methodMapping);
        }
    
        @Override
        public String toString() {
            return "FormatOutput{" +
                    "projectName='" + projectName + '\'' +
                    ", className='" + className + '\'' +
                    ", methodName='" + methodName + '\'' +
                    ", methodMapping='" + methodMapping + '\'' +
                    '}';
        }
    }

import java.io.*;
    import java.util.ArrayList;
    import java.util.List;
    import java.util.Vector;
    import java.util.regex.Matcher;
    import java.util.regex.Pattern;
    import java.util.stream.Collectors;
    
    /**
     * @author dengfengfeng
     * @date 2020/10/19
     */
    public class FindInvalidProvider {
    
        private final static String projectPath = "C:\\Users\\82419\\IdeaProjects";
        private final static String feignClient = "${customer.feign.name}";
    
        private final static Pattern requestBasePath = Pattern.compile("@RequestMapping\$\"(.*)\"\$");
        private final static Pattern mappingPath = Pattern.compile("Mapping\$\"(.*)\"\$");
    
    
        private final static Vector<FormatOutput> pathList = new Vector<>();
        private static List<String> ps = new ArrayList<>();
        private final FileFilter javaFileFilter = f -> isJavaFile(f);
    
        private final static String srcCodeDirectory = projectPath +File.separator+
                "crm-service\\customer-service\\src\\main\\java\\com\\ydcloud\\customer\\controller\\provider";
    
        public static void main(String[] args) {
            //首先确定需要分析的项目的地址
    
            File file = new File(srcCodeDirectory);
            System.out.println(file.getAbsolutePath());
            extractAllMappingToVector(file);
            System.err.println("一共"+pathList.size()+"个接口");
            System.out.println("所有的provider");
            System.out.println(pathList);
    
            ps = pathList.stream().map(FormatOutput::getMethodMapping).collect(Collectors.toList());
            //检查其他项目有没有调用目标服务
            File root = new File(projectPath);
            excludeMapping(root);
            System.err.println("剩下的provider");
            System.err.println(pathList);
            System.err.println("一共"+pathList.size()+"个接口未被使用");
            System.err.println("格式化输出");
            pathList.forEach(
                    p->{
                        String methodMapping = p.getMethodMapping();
                        String className = p.getClassName();
                        String substring = methodMapping.substring(9);
    
                        System.err.println(className+","+substring);
                    }
            );
    
        }
    
        private static boolean isJavaFile(File file) {
            if (file.exists() && !file.isDirectory()) {
                int lastIndexOf = file.getName().lastIndexOf(".");
                if (lastIndexOf == -1) {
                    return false;
                }
                String suffix = file.getName().substring(lastIndexOf);
                return ".java".equals(suffix);
            } else {
                return false;
            }
        }
    
        private static void excludeMapping(File file) {
            if (file.exists()) {
    
                if (file.isDirectory()) {
                    if (file.getAbsolutePath().contains("crm-service\\customer-service")) {
                        return;
                    }
                    File[] files = file.listFiles();
                    for (File f : files) {
                        excludeMapping(f);
                    }
                } else {
                    if (isJavaFile(file)) {
                        try (InputStreamReader isr = new InputStreamReader(new FileInputStream(file));
    
                             BufferedReader reader = new BufferedReader(isr);) {
    
                            String tmp;
                            String basePath = "";
                            boolean isFeignClient = false;
    
                            while ((tmp = reader.readLine()) != null) {
                                if (!isFeignClient) {
                                    isFeignClient = getFeignClient(tmp);
                                }
                                // 处理读取的数据
                                if (basePath.equals("")) {
                                    basePath = findMappingValue(tmp, requestBasePath);
                                } else {
                                    String mappingValue = findMappingValue(tmp, mappingPath);
                                    if (!mappingValue.equals("")) {
                                        String path = basePath + mappingValue;
                                        path = path.replace("//", "/");
                                        FormatOutput formatOutput = new FormatOutput();
                                        formatOutput.setMethodMapping(path);
                                        if (pathList.contains(formatOutput)) {
                                            if(isFeignClient){
                                                pathList.remove(formatOutput);
                                            }
    
                                        }
                                    }
                                }
                            }
    
                        } catch (IOException e) {
                            e.printStackTrace();
                        }
    
                    }
    
                }
            }
        }
    
    
        private static void extractAllMappingToVector(File file) {
            if (file.exists()) {
                if (file.isDirectory()) {
                    File[] files = file.listFiles();
                    for (File f : files) {
                        extractAllMappingToVector(f);
                    }
                } else {
                    if (isJavaFile(file)) {
    
                        try (InputStreamReader isr = new InputStreamReader(new FileInputStream(file));
    
                             BufferedReader reader = new BufferedReader(isr);) {
                            String tmp;
                            String basePath = "";
                            while ((tmp = reader.readLine()) != null) {
                                // 处理读取的数据
    
                                if (basePath.equals("")) {
                                    basePath = findMappingValue(tmp, requestBasePath);
                                } else {
                                    String mappingValue = findMappingValue(tmp, mappingPath);
                                    if (!mappingValue.equals("")) {
                                        String path = basePath + mappingValue;
                                        path = path.replace("//", "/");
                                        FormatOutput formatOutput = new FormatOutput();
                                        formatOutput.setClassName(file.getName());
                                        formatOutput.setMethodMapping(path);
                                        pathList.add(formatOutput);
                                    }
                                }
    
    
                            }
    
                        } catch (IOException e) {
                            e.printStackTrace();
                        }
    
                    }
    
                }
            }
        }
    
        private static String findMappingValue(String line, Pattern pattern) {
            Matcher matcher = pattern.matcher(line);
            if (matcher.find()) {
                return matcher.group(1);
            } else {
                return "";
            }
        }
    
        private static boolean getFeignClient(String line) {
            if (line.contains(feignClient)) {
                return true;
            } else {
                return false;
            }
        }
    
    }

他这个就是专门查找controller中的, 有没有这个controller有没有被用到的, 功能更加的单一.

至于孰优孰劣的问题, 就不说了, 因为考虑的场景不同, 我做的更加通用一些, 相当于半自动化的, 他写的是全自动化, 只能做这一块的功能.