package com.hx.mybatis.aes.springbean; import com.gitee.sunchenbin.mybatis.actable.annotation.Table; import com.hx.common.annotations.MysqlHexAes; import com.hx.util.StringUtils; import org.slf4j.Logger; import org.slf4j.LoggerFactory; import org.springframework.stereotype.Component; import javax.annotation.PostConstruct; import javax.annotation.Resource; import java.io.File; import java.io.FileFilter; import java.io.IOException; import java.lang.reflect.Field; import java.net.JarURLConnection; import java.net.URL; import java.net.URLDecoder; import java.util.*; import java.util.jar.JarEntry; import java.util.jar.JarFile; /** * 获取指定包里面的AES秘钥 */ @Component public class VariableAesKey { //log4j日志 private static Logger logger = LoggerFactory.getLogger(VariableAesKey.class.getName()); @Resource private ConstantBean constantBean; /**是否已经启动完*/ public static int isRun = 0; /**存储所有AES的秘钥*/ public static Map aesKeys = new HashMap<>(); /**根据表明来存储AES秘钥*/ public static Map> aesKeysTable = new HashMap<>(); /**固定的aes秘钥*/ public static String AES_KEY = null; /**数据库加密字段初始化版本号*/ public static String INIT_VERSION = null; /**存储AES秘钥*/ public static void setAesKey(String aesKeyFild,String aesKey){ aesKeys.put(aesKeyFild,aesKey); } /**获取AES秘钥*/ public static String getAesKey(String aesKeyFild){ if(aesKeyFild == null){ return AES_KEY; } if(StringUtils.isEmpty(aesKeys.get(aesKeyFild))){ return AES_KEY; }else { return aesKeys.get(aesKeyFild); } } /** * 项目启动就执行后就执行该方法 */ @PostConstruct public void VariableAesKey(){ isRun = 1; //项目启动的时候填入 logger.info("扫描获取AES的包:" + constantBean.getPackPath()); AES_KEY = constantBean.getFixedAesKey(); INIT_VERSION = constantBean.getInitVersion(); if(!StringUtils.isEmpty(constantBean.getPackPath())){ Set> classes = classData(constantBean.getPackPath()); logger.info("扫描获取AES的包classes:" + classes.size()); Map aesKeysFild = new HashMap<>(); boolean isAes = false; String tableName = null; for(Class cl:classes){ //表名称 boolean hasAnnotation = cl.isAnnotationPresent(Table.class); if(!hasAnnotation){ continue; } Table table = cl.getAnnotation(Table.class); tableName = table.name(); aesKeysFild = new HashMap<>(); isAes = false; // 取得本类的全部属性 Field[] fields = cl.getDeclaredFields(); fields = getPatentFields(fields,cl); for (Field field:fields) { // 判断方法中是否有指定注解类型的注解 hasAnnotation = field.isAnnotationPresent(MysqlHexAes.class); if (hasAnnotation) { // 根据注解类型返回方法的指定类型注解 MysqlHexAes mysqlHexAes = field.getAnnotation(MysqlHexAes.class); //String aesKeyField = mysqlHexAes.aesKeyField(); String aesKey = mysqlHexAes.aesKey(); if(StringUtils.isEmpty(aesKey)){ aesKey = constantBean.getFixedAesKey(); if(StringUtils.isEmpty(aesKey)){ throw new RuntimeException("mysql的AES秘钥不能为空:"+field.getName()); } } String key = aesKeys.get(field.getName()); if(StringUtils.isEmpty(key)){ aesKeys.put(field.getName(),aesKey); aesKeysFild.put(field.getName(),aesKey); isAes = true; }else{ isAes = true; aesKeysFild.put(field.getName(),aesKey); if(!aesKey.equals(key)){ throw new RuntimeException("字段/定义的AES秘钥字段【"+field.getName()+"】多个一样,但是AES秘钥不一样"); } } } } if(isAes){ aesKeysTable.put(tableName,aesKeysFild); } } } } /**获取包下面的所有文件*/ public static Set> classData(String packPath){ Set> classes = new LinkedHashSet(); String[] split = packPath.split(",|;"); String[] var3 = split; int var4 = split.length; label82: for(int var5 = 0; var5 < var4; ++var5) { String pack = var3[var5]; boolean recursive = true; String packageName = pack; String packageDirName = pack.replace('.', '/'); try { Enumeration dirs = Thread.currentThread().getContextClassLoader().getResources(packageDirName); while(true) { label75: while(true) { if (!dirs.hasMoreElements()) { continue label82; } URL url = (URL)dirs.nextElement(); String protocol = url.getProtocol(); if ("file".equals(protocol)) { System.err.println("file类型的扫描:" + pack); String filePath = URLDecoder.decode(url.getFile(), "UTF-8"); findAndAddClassesInPackageByFile(packageName, filePath, recursive, classes); } else if ("jar".equals(protocol)) { System.err.println("jar类型的扫描"); try { JarFile jar = ((JarURLConnection)url.openConnection()).getJarFile(); Enumeration entries = jar.entries(); while(true) { JarEntry entry; String name; int idx; do { do { if (!entries.hasMoreElements()) { continue label75; } entry = (JarEntry)entries.nextElement(); name = entry.getName(); if (name.charAt(0) == '/') { name = name.substring(1); } } while(!name.startsWith(packageDirName)); idx = name.lastIndexOf(47); if (idx != -1) { packageName = name.substring(0, idx).replace('/', '.'); } } while(idx == -1 && !recursive); if (name.endsWith(".class") && !entry.isDirectory()) { String className = name.substring(packageName.length() + 1, name.length() - 6); try { classes.add(Class.forName(packageName + '.' + className)); } catch (ClassNotFoundException var20) { var20.printStackTrace(); } } } } catch (IOException var21) { var21.printStackTrace(); } } } } } catch (IOException var22) { var22.printStackTrace(); } } return classes; } /** * 以文件的形式来获取包下的所有Class * * @param packageName * @param packagePath * @param recursive * @param classes */ public static void findAndAddClassesInPackageByFile( String packageName, String packagePath, final boolean recursive, Set> classes){ // 获取此包的目录 建立一个File File dir = new File(packagePath); // 如果不存在或者 也不是目录就直接返回 if (!dir.exists() || !dir.isDirectory()) { // log.warn("用户定义包名 " + packageName + " 下没有任何文件"); return; } // 如果存在 就获取包下的所有文件 包括目录 File[] dirfiles = dir.listFiles(new FileFilter(){ // 自定义过滤规则 如果可以循环(包含子目录) 或则是以.class结尾的文件(编译好的java类文件) @Override public boolean accept(File file){ return (recursive && file.isDirectory()) || (file.getName().endsWith(".class")); } }); // 循环所有文件 for (File file : dirfiles){ // 如果是目录 则继续扫描 if (file.isDirectory()) { findAndAddClassesInPackageByFile(packageName + "." + file.getName(), file.getAbsolutePath(), recursive, classes); }else{ // 如果是java类文件 去掉后面的.class 只留下类名 String className = file.getName().substring(0, file.getName().length() - 6); try{ // 添加到集合中去 // classes.add(Class.forName(packageName + '.' + // className)); // 经过回复同学的提醒,这里用forName有一些不好,会触发static方法,没有使用classLoader的load干净 classes.add(Thread.currentThread().getContextClassLoader().loadClass(packageName + '.' + className)); }catch (ClassNotFoundException e){ // log.error("添加用户自定义视图类错误 找不到此类的.class文件"); e.printStackTrace(); } } } } /** * 获取父类的字段 * @param fields * @param clas * @return */ public static Field[] getPatentFields(Field[] fields,Class clas){ if (clas.getSuperclass() != null) { Class clsSup = clas.getSuperclass(); List fieldList = new ArrayList(); fieldList.addAll(Arrays.asList(fields)); fieldList.addAll(Arrays.asList(clsSup.getDeclaredFields())); fields = new Field[fieldList.size()]; int i = 0; for (Object field : fieldList.toArray()) { fields[i] = (Field) field; i++; } fields = getPatentFields(fields,clsSup); } return fields; } }