diff --git a/xxl-job-core/src/main/java/com/xxl/job/core/glue/loader/GlueLoader.java b/xxl-job-core/src/main/java/com/xxl/job/core/glue/loader/GlueLoader.java
index b210e28e..35459715 100644
--- a/xxl-job-core/src/main/java/com/xxl/job/core/glue/loader/GlueLoader.java
+++ b/xxl-job-core/src/main/java/com/xxl/job/core/glue/loader/GlueLoader.java
@@ -8,8 +8,9 @@ public interface GlueLoader {
/**
* load code source by name, ensure every load is the latest.
- * @param name
- * @return
+ * @param job_group
+ * @param job_name
+ * @return code source
*/
public String load(String job_group, String job_name);
diff --git a/xxl-job-core/src/main/java/com/xxl/job/core/handler/IJobHandler.java b/xxl-job-core/src/main/java/com/xxl/job/core/handler/IJobHandler.java
index 1e4c0f6f..a845a911 100644
--- a/xxl-job-core/src/main/java/com/xxl/job/core/handler/IJobHandler.java
+++ b/xxl-job-core/src/main/java/com/xxl/job/core/handler/IJobHandler.java
@@ -12,7 +12,7 @@ public abstract class IJobHandler extends HandlerRouter {
* job handler
* the return Object will be and stored
* @param params
- * @return
+ * @return job status
* @throws Exception
*/
public abstract JobHandleStatus execute(String... params) throws Exception;
diff --git a/xxl-job-core/src/main/java/com/xxl/job/core/log/XxlJobFileAppender.java b/xxl-job-core/src/main/java/com/xxl/job/core/log/XxlJobFileAppender.java
index 5dd6a7b9..4fa1fc05 100644
--- a/xxl-job-core/src/main/java/com/xxl/job/core/log/XxlJobFileAppender.java
+++ b/xxl-job-core/src/main/java/com/xxl/job/core/log/XxlJobFileAppender.java
@@ -103,7 +103,7 @@ public class XxlJobFileAppender extends AppenderSkeleton {
* support read log-file
* @param triggerDate
* @param trigger_log_id
- * @return
+ * @return log content
*/
public static String readLog(Date triggerDate, int trigger_log_id ){
if (triggerDate==null || trigger_log_id<=0) {
@@ -137,7 +137,7 @@ public class XxlJobFileAppender extends AppenderSkeleton {
/**
* read log data
* @param logFile
- * @return
+ * @return log line content
*/
public static String readLines(File logFile){
BufferedReader reader = null;
@@ -167,9 +167,9 @@ public class XxlJobFileAppender extends AppenderSkeleton {
/**
* read data from line num
- * @param sourceFile
+ * @param logFile
* @param fromLineNum
- * @return
+ * @return log content
* @throws Exception
*/
public static String readLinesFrom(File logFile, int fromLineNum) {
diff --git a/xxl-job-core/src/main/java/com/xxl/job/core/router/HandlerRouter.java b/xxl-job-core/src/main/java/com/xxl/job/core/router/HandlerRouter.java
index 4fd62a42..e69305ce 100644
--- a/xxl-job-core/src/main/java/com/xxl/job/core/router/HandlerRouter.java
+++ b/xxl-job-core/src/main/java/com/xxl/job/core/router/HandlerRouter.java
@@ -64,7 +64,7 @@ public class HandlerRouter {
/**
* match Action by enum name
* @param name
- * @return
+ * @return action
*/
public static IAction matchAction(String name){
if (name!=null && name.trim().length()>0) {
diff --git a/xxl-job-core/src/main/java/com/xxl/job/core/util/ByteHexConverter.java b/xxl-job-core/src/main/java/com/xxl/job/core/util/ByteHexConverter.java
index 2d2db184..02581330 100644
--- a/xxl-job-core/src/main/java/com/xxl/job/core/util/ByteHexConverter.java
+++ b/xxl-job-core/src/main/java/com/xxl/job/core/util/ByteHexConverter.java
@@ -51,7 +51,7 @@ public class ByteHexConverter {
/**
* get length of string
* @param str
- * @return
+ * @return len of string byte
*/
public static int getByteLen(String str){
if (str==null || str.length()==0) {
diff --git a/xxl-job-core/src/main/java/com/xxl/job/core/util/IpUtil.java b/xxl-job-core/src/main/java/com/xxl/job/core/util/IpUtil.java
index 7579d1f1..c75b465c 100644
--- a/xxl-job-core/src/main/java/com/xxl/job/core/util/IpUtil.java
+++ b/xxl-job-core/src/main/java/com/xxl/job/core/util/IpUtil.java
@@ -1,13 +1,13 @@
package com.xxl.job.core.util;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
import java.net.InetAddress;
import java.net.NetworkInterface;
import java.net.UnknownHostException;
import java.util.Enumeration;
-import org.slf4j.Logger;
-import org.slf4j.LoggerFactory;
-
/**
* get ip
* @author xuxueli 2016-5-22 11:38:05
@@ -17,7 +17,7 @@ public class IpUtil {
/**
* 获取本机ip
- * @return
+ * @return ip
*/
public static String getIp() {
try {
diff --git a/xxl-job-core/src/main/java/com/xxl/job/core/util/JacksonUtil.java b/xxl-job-core/src/main/java/com/xxl/job/core/util/JacksonUtil.java
index d6ffbae0..e80ec6f2 100644
--- a/xxl-job-core/src/main/java/com/xxl/job/core/util/JacksonUtil.java
+++ b/xxl-job-core/src/main/java/com/xxl/job/core/util/JacksonUtil.java
@@ -1,16 +1,16 @@
package com.xxl.job.core.util;
-import java.io.IOException;
-import java.util.HashMap;
-import java.util.Map;
-
import org.codehaus.jackson.JsonGenerationException;
import org.codehaus.jackson.JsonParseException;
import org.codehaus.jackson.map.JsonMappingException;
import org.codehaus.jackson.map.ObjectMapper;
import org.codehaus.jackson.type.TypeReference;
+import java.io.IOException;
+import java.util.HashMap;
+import java.util.Map;
+
/**
* Jackson util
*
@@ -29,7 +29,7 @@ public class JacksonUtil {
* bean、array、List、Map --> json
*
* @param obj
- * @return
+ * @return json string
* @throws Exception
*/
public static String writeValueAsString(Object obj) {
@@ -50,7 +50,7 @@ public class JacksonUtil {
*
* @param jsonStr
* @param clazz
- * @return
+ * @return obj
* @throws Exception
*/
public static T readValue(String jsonStr, Class clazz) {
diff --git a/xxl-job-core/src/main/java/com/xxl/job/core/util/XxlJobNetCommUtil.java b/xxl-job-core/src/main/java/com/xxl/job/core/util/XxlJobNetCommUtil.java
index c7744ee8..c97f525e 100644
--- a/xxl-job-core/src/main/java/com/xxl/job/core/util/XxlJobNetCommUtil.java
+++ b/xxl-job-core/src/main/java/com/xxl/job/core/util/XxlJobNetCommUtil.java
@@ -34,7 +34,7 @@ public class XxlJobNetCommUtil {
/**
* format object to hex-json
* @param obj
- * @return
+ * @return result
*/
public static String formatObj2HexJson(Object obj){
// obj to json
@@ -56,7 +56,7 @@ public class XxlJobNetCommUtil {
* parse hex-json to object
* @param hex
* @param clazz
- * @return
+ * @return result
*/
public static T parseHexJson2Obj(String hex, Class clazz){
// hex to byte[]
@@ -161,7 +161,7 @@ public class XxlJobNetCommUtil {
/**
* parse address ip:port to url http://.../
* @param address
- * @return
+ * @return result
*/
public static String addressToUrl(String address){
return "http://" + address + "/";