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wangrenhuang

2022-03-02 1ffbaa7b82f99443d933b0f7d0add0b35d2db01c

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c64e12	1	package com.hx.mybatis.aes.springbean;
e29546	2
c64e12	3	import com.gitee.sunchenbin.mybatis.actable.annotation.Table;
e29546	4	import com.hx.common.annotations.MysqlHexAes;
C	5	import com.hx.util.StringUtils;
346eb2	6	import org.slf4j.Logger;
C	7	import org.slf4j.LoggerFactory;
e29546	8	import org.springframework.stereotype.Component;
C	9
	10	import javax.annotation.PostConstruct;
	11	import javax.annotation.Resource;
	12	import java.io.File;
	13	import java.io.FileFilter;
	14	import java.io.IOException;
	15	import java.lang.reflect.Field;
346eb2	16	import java.net.JarURLConnection;
e29546	17	import java.net.URL;
C	18	import java.net.URLDecoder;
	19	import java.util.*;
346eb2	20	import java.util.jar.JarEntry;
C	21	import java.util.jar.JarFile;
e29546	22
C	23	/**
	24	* 获取指定包里面的AES秘钥
	25	*/
	26	@Component
	27	public class VariableAesKey {
346eb2	28
C	29	//log4j日志
	30	private static Logger logger = LoggerFactory.getLogger(VariableAesKey.class.getName());
e29546	31
C	32	@Resource
	33	private ConstantBean constantBean;
	34
c64e12	35	/*是否已经启动完/
C	36	public static int isRun = 0;
	37
	38	/*存储所有AES的秘钥/
e29546	39	public static Map<String,String> aesKeys = new HashMap<>();
c64e12	40	/*根据表明来存储AES秘钥/
C	41	public static Map<String,Map<String,String>> aesKeysTable = new HashMap<>();
	42
	43	/*固定的aes秘钥/
	44	public static String AES_KEY = null;
b1097d	45	/*数据库加密字段初始化版本号/
C	46	public static String INIT_VERSION = null;
	47
	48
e29546	49
C	50	/*存储AES秘钥/
	51	public static void setAesKey(String aesKeyFild,String aesKey){
	52	aesKeys.put(aesKeyFild,aesKey);
	53	}
	54	/*获取AES秘钥/
	55	public static String getAesKey(String aesKeyFild){
c64e12	56	if(aesKeyFild == null){
C	57	return AES_KEY;
	58	}
	59	if(StringUtils.isEmpty(aesKeys.get(aesKeyFild))){
	60	return AES_KEY;
	61	}else {
	62	return aesKeys.get(aesKeyFild);
	63	}
e29546	64	}
C	65
	66	/**
	67	* 项目启动就执行后就执行该方法
	68	*/
	69	@PostConstruct
	70	public void VariableAesKey(){
c64e12	71
C	72	isRun = 1;
e29546	73	//项目启动的时候填入
346eb2	74	logger.info("扫描获取AES的包:" + constantBean.getPackPath());
c64e12	75	AES_KEY = constantBean.getFixedAesKey();
b1097d	76	INIT_VERSION = constantBean.getInitVersion();
af1eee	77	if(!StringUtils.isEmpty(constantBean.getPackPath())){
e29546	78	Set<Class<?>> classes = classData(constantBean.getPackPath());
346eb2	79	logger.info("扫描获取AES的包classes:" + classes.size());
c64e12	80	Map<String,String> aesKeysFild = new HashMap<>();
C	81	boolean isAes = false;
	82	String tableName = null;
	83
e29546	84	for(Class<?> cl:classes){
c64e12	85	//表名称
346eb2	86	boolean hasAnnotation = cl.isAnnotationPresent(Table.class);
C	87	if(!hasAnnotation){
c64e12	88	continue;
C	89	}
346eb2	90	Table table = cl.getAnnotation(Table.class);
c64e12	91	tableName = table.name();
C	92
	93	aesKeysFild = new HashMap<>();
	94	isAes = false;
	95
e29546	96	// 取得本类的全部属性
C	97	Field[] fields = cl.getDeclaredFields();
	98	fields = getPatentFields(fields,cl);
	99	for (Field field:fields) {
	100	// 判断方法中是否有指定注解类型的注解
346eb2	101	hasAnnotation = field.isAnnotationPresent(MysqlHexAes.class);
e29546	102	if (hasAnnotation) {
C	103	// 根据注解类型返回方法的指定类型注解
	104	MysqlHexAes mysqlHexAes = field.getAnnotation(MysqlHexAes.class);
	105
c64e12	106	//String aesKeyField = mysqlHexAes.aesKeyField();
e29546	107	String aesKey = mysqlHexAes.aesKey();
C	108
	109	if(StringUtils.isEmpty(aesKey)){
c64e12	110	aesKey = constantBean.getFixedAesKey();
C	111	if(StringUtils.isEmpty(aesKey)){
	112	throw new RuntimeException("mysql的AES秘钥不能为空:"+field.getName());
e29546	113	}
c64e12	114	}
C	115	String key = aesKeys.get(field.getName());
	116	if(StringUtils.isEmpty(key)){
	117	aesKeys.put(field.getName(),aesKey);
	118	aesKeysFild.put(field.getName(),aesKey);
	119	isAes = true;
e29546	120	}else{
c64e12	121	isAes = true;
C	122	aesKeysFild.put(field.getName(),aesKey);
	123	if(!aesKey.equals(key)){
	124	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");
e29546	125	}
C	126	}
	127	}
c64e12	128	}
C	129	if(isAes){
	130	aesKeysTable.put(tableName,aesKeysFild);
e29546	131	}
C	132	}
	133	}
	134	}
	135
	136	/*获取包下面的所有文件/
	137	public static Set<Class<?>> classData(String packPath){
346eb2	138	Set<Class<?>> classes = new LinkedHashSet();
C	139	String[] split = packPath.split(",\|;");
	140	String[] var3 = split;
	141	int var4 = split.length;
c64e12	142
346eb2	143	label82:
C	144	for(int var5 = 0; var5 < var4; ++var5) {
	145	String pack = var3[var5];
c64e12	146	boolean recursive = true;
346eb2	147	String packageName = pack;
C	148	String packageDirName = pack.replace('.', '/');
	149
	150	try {
	151	Enumeration dirs = Thread.currentThread().getContextClassLoader().getResources(packageDirName);
	152
	153	while(true) {
	154	label75:
	155	while(true) {
	156	if (!dirs.hasMoreElements()) {
	157	continue label82;
	158	}
	159
	160	URL url = (URL)dirs.nextElement();
	161	String protocol = url.getProtocol();
	162	if ("file".equals(protocol)) {
	163	System.err.println("file类型的扫描:" + pack);
	164	String filePath = URLDecoder.decode(url.getFile(), "UTF-8");
	165	findAndAddClassesInPackageByFile(packageName, filePath, recursive, classes);
	166	} else if ("jar".equals(protocol)) {
	167	System.err.println("jar类型的扫描");
	168
	169	try {
	170	JarFile jar = ((JarURLConnection)url.openConnection()).getJarFile();
	171	Enumeration entries = jar.entries();
	172
	173	while(true) {
	174	JarEntry entry;
	175	String name;
	176	int idx;
	177	do {
	178	do {
	179	if (!entries.hasMoreElements()) {
	180	continue label75;
	181	}
	182
	183	entry = (JarEntry)entries.nextElement();
	184	name = entry.getName();
	185	if (name.charAt(0) == '/') {
	186	name = name.substring(1);
	187	}
	188	} while(!name.startsWith(packageDirName));
	189
	190	idx = name.lastIndexOf(47);
	191	if (idx != -1) {
	192	packageName = name.substring(0, idx).replace('/', '.');
	193	}
	194	} while(idx == -1 && !recursive);
	195
	196	if (name.endsWith(".class") && !entry.isDirectory()) {
	197	String className = name.substring(packageName.length() + 1, name.length() - 6);
	198
	199	try {
	200	classes.add(Class.forName(packageName + '.' + className));
	201	} catch (ClassNotFoundException var20) {
	202	var20.printStackTrace();
	203	}
	204	}
	205	}
	206	} catch (IOException var21) {
	207	var21.printStackTrace();
	208	}
	209	}
c64e12	210	}
e29546	211	}
346eb2	212	} catch (IOException var22) {
C	213	var22.printStackTrace();
e29546	214	}
C	215	}
346eb2	216
e29546	217	return classes;
C	218	}
	219
	220	/**
	221	* 以文件的形式来获取包下的所有Class
	222	*
	223	* @param packageName
	224	* @param packagePath
	225	* @param recursive
	226	* @param classes
	227	*/
	228	public static void findAndAddClassesInPackageByFile(
	229	String packageName,
	230	String packagePath,
	231	final boolean recursive,
	232	Set<Class<?>> classes){
	233	// 获取此包的目录建立一个File
	234	File dir = new File(packagePath);
	235	// 如果不存在或者也不是目录就直接返回
	236	if (!dir.exists() \|\| !dir.isDirectory()) {
	237	// log.warn("用户定义包名 " + packageName + " 下没有任何文件");
	238	return;
	239	}
	240	// 如果存在就获取包下的所有文件包括目录
	241	File[] dirfiles = dir.listFiles(new FileFilter(){
	242	// 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)
	243	@Override
	244	public boolean accept(File file){
	245	return (recursive && file.isDirectory()) \|\| (file.getName().endsWith(".class"));
	246	}
	247	});
	248	// 循环所有文件
	249	for (File file : dirfiles){
	250	// 如果是目录则继续扫描
	251	if (file.isDirectory()) {
	252	findAndAddClassesInPackageByFile(packageName + "." + file.getName(), file.getAbsolutePath(), recursive, classes);
	253	}else{
	254	// 如果是java类文件去掉后面的.class 只留下类名
	255	String className = file.getName().substring(0, file.getName().length() - 6);
	256	try{
	257	// 添加到集合中去
	258	// classes.add(Class.forName(packageName + '.' +
	259	// className));
	260	// 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
	261	classes.add(Thread.currentThread().getContextClassLoader().loadClass(packageName + '.' + className));
	262	}catch (ClassNotFoundException e){
	263	// log.error("添加用户自定义视图类错误找不到此类的.class文件");
	264	e.printStackTrace();
	265	}
	266	}
	267	}
	268	}
	269
	270	/**
	271	* 获取父类的字段
	272	* @param fields
	273	* @param clas
	274	* @return
	275	*/
	276	public static Field[] getPatentFields(Field[] fields,Class<?> clas){
	277	if (clas.getSuperclass() != null) {
	278	Class clsSup = clas.getSuperclass();
	279	List<Field> fieldList = new ArrayList<Field>();
	280	fieldList.addAll(Arrays.asList(fields));
	281	fieldList.addAll(Arrays.asList(clsSup.getDeclaredFields()));
	282	fields = new Field[fieldList.size()];
	283	int i = 0;
	284	for (Object field : fieldList.toArray()) {
	285	fields[i] = (Field) field;
	286	i++;
	287	}
	288	fields = getPatentFields(fields,clsSup);
	289	}
	290	return fields;
	291	}
	292
	293
	294	}