Fix typos and clean some code.

xxl-job-admin/src/main/java/com/xxl/job/admin/core/conf/XxlJobAdminConfig.java

     private XxlJobScheduler xxlJobScheduler;
 
     @Override
-    public void afterPropertiesSet() {
+    public void afterPropertiesSet() throws Exception {
         adminConfig = this;
 
         xxlJobScheduler = new XxlJobScheduler();

xxl-job-admin/src/main/java/com/xxl/job/admin/service/impl/AdminBizImpl.java

     public ReturnT<String> registry(RegistryParam registryParam) {
 
         // valid
-        if (!StringUtils.hasText(registryParam.getRegistGroup())
+        if (!StringUtils.hasText(registryParam.getRegistryGroup())
                 || !StringUtils.hasText(registryParam.getRegistryKey())
                 || !StringUtils.hasText(registryParam.getRegistryValue())) {
             return new ReturnT<String>(ReturnT.FAIL_CODE, "Illegal Argument.");
         }
 
-        int ret = xxlJobRegistryDao.registryUpdate(registryParam.getRegistGroup(), registryParam.getRegistryKey(), registryParam.getRegistryValue(), new Date());
+        int ret = xxlJobRegistryDao.registryUpdate(registryParam.getRegistryGroup(), registryParam.getRegistryKey(), registryParam.getRegistryValue(), new Date());
         if (ret < 1) {
-            xxlJobRegistryDao.registrySave(registryParam.getRegistGroup(), registryParam.getRegistryKey(), registryParam.getRegistryValue(), new Date());
+            xxlJobRegistryDao.registrySave(registryParam.getRegistryGroup(), registryParam.getRegistryKey(), registryParam.getRegistryValue(), new Date());
 
             // fresh
             freshGroupRegistryInfo(registryParam);
     public ReturnT<String> registryRemove(RegistryParam registryParam) {
 
         // valid
-        if (!StringUtils.hasText(registryParam.getRegistGroup())
+        if (!StringUtils.hasText(registryParam.getRegistryGroup())
                 || !StringUtils.hasText(registryParam.getRegistryKey())
                 || !StringUtils.hasText(registryParam.getRegistryValue())) {
             return new ReturnT<String>(ReturnT.FAIL_CODE, "Illegal Argument.");
         }
 
-        int ret = xxlJobRegistryDao.registryDelete(registryParam.getRegistGroup(), registryParam.getRegistryKey(), registryParam.getRegistryValue());
+        int ret = xxlJobRegistryDao.registryDelete(registryParam.getRegistryGroup(), registryParam.getRegistryKey(), registryParam.getRegistryValue());
         if (ret > 0) {
 
             // fresh