打造一款代码命名工具的详细教程

<dependency>
   <groupId>org.reflections</groupId>
   <artifactId>reflections</artifactId>
   <version>0.9.12</version>
  </dependency>

 List<ClassLoader> classLoadersList = new LinkedList<ClassLoader>();
  classLoadersList.add(ClasspathHelper.contextClassLoader());
  classLoadersList.add(ClasspathHelper.staticClassLoader());

  Reflections reflections = new Reflections(new ConfigurationBuilder()
    .setScanners(new SubTypesScanner(false), new ResourcesScanner())
    .setUrls(ClasspathHelper.forClassLoader(classLoadersList.toArray(new ClassLoader[0])))
    .filterInputsBy(new FilterBuilder().includePackage("org","javax","com","io")));

Set<Class<? extends Object>> allClasses =
    reflections.getSubTypesOf(Object.class);
  Map<String, Integer> name2count = new HashMap<String, Integer>();
  for (Class<?> clazz : allClasses) {
   System.out.println(clazz.getName());
   try {
    appendToNameMap(name2count, clazz.getSimpleName());

    Field[] fields = clazz.getDeclaredFields();
    for (Field field : fields) {
     String name = field.getName();
     appendToNameMap(name2count, name);
    }
    Method[] methods = clazz.getMethods();
    for (Method method : methods) {
     String name = method.getName();
     appendToNameMap(name2count, name);
     // parameters
     Parameter[] parameters = method.getParameters();
     for (Parameter param : parameters) {
      name = param.getName();
      appendToNameMap(name2count, name);
     }
    }
   }catch(Throwable t)
   { }

 private static void appendToNameMap(Map<String, Integer> name2count, String name) {
  // filter
  if(name.contains("-") || name.contains("_")|| name.contains("$")){
   return;
  }

  if (!name2count.containsKey(name)) {
   name2count.put(name, 1);
  } else {
   name2count.put(name, name2count.get(name) +1);
  }
 }

FileUtils.writeAllText(JSON.toJSONString(name2count), new File("name2count.txt"));

var index = new FlexSearch({
   encode: "advanced",
   tokenize: "reverse",
   suggest: true,
   cache: true
  })
  var data = []
  var i = 0
  for (var name in names) {
   var indexName = name.replace(/([A-Z])/g, " $1")
   data[i] = {
    "name": name,
    "count": names[name]
   }
   index.add(i++, indexName)
  }

function searchFromIndex(value) {
  var results = index.search(value, 25)
 
  results = results.map(function (i) {
   return data[i]
  })
 
  results = results.sort(function (a, b) {
   return b.count - a.count
  })
  return results
 }

function formatSuggestion(item){
 return `${item.name} <span class='tips'>代码库共出现${item.count}次 (相关搜索： <a target='_blank' href='https://unbug.github.io/codelf/#${item.name}'>codelf</a> &nbsp; <a target='_blank' href='https://searchcode.com/?q=${item.name}&lan=23'>searchcode</a>)</span>`;
}