diff --git a/len-common/src/main/java/com/len/handler/BusinessException.java b/len-common/src/main/java/com/len/handler/BusinessException.java
new file mode 100644
index 0000000000000000000000000000000000000000..8d2687611e310fd02990a1a8f838529a5a6e144d
--- /dev/null
+++ b/len-common/src/main/java/com/len/handler/BusinessException.java
@@ -0,0 +1,13 @@
+package com.len.handler;
+
+import lombok.AllArgsConstructor;
+import lombok.Data;
+import lombok.NoArgsConstructor;
+
+@Data
+@AllArgsConstructor
+@NoArgsConstructor
+public class BusinessException extends RuntimeException {
+	private Integer code;
+    private String errMsg;
+}
diff --git a/len-common/src/main/java/com/len/handler/GlobalExceptionHandler.java b/len-common/src/main/java/com/len/handler/GlobalExceptionHandler.java
new file mode 100644
index 0000000000000000000000000000000000000000..265c6894ccf5316cec69ad60a215a71d518fdf74
--- /dev/null
+++ b/len-common/src/main/java/com/len/handler/GlobalExceptionHandler.java
@@ -0,0 +1,54 @@
+package com.len.handler;
+
+
+import org.springframework.web.bind.annotation.ControllerAdvice;
+import org.springframework.web.bind.annotation.ExceptionHandler;
+import org.springframework.web.bind.annotation.ResponseBody;
+
+import com.len.response.Result;
+import com.len.response.ResultCode;
+
+@ControllerAdvice
+public class GlobalExceptionHandler {
+    /**
+     * 全局异常处理,没有指定异常的类型,不管什么异常都是可以捕获的
+     * @param e
+     * @return
+     */
+    @ExceptionHandler(Exception.class)
+    @ResponseBody
+    public Result error(Exception e){
+        //e.printStackTrace();
+    	System.err.println(e.getMessage());
+        return Result.error();
+    }
+
+    /**
+     * 处理特定异常类型,可以定义多个,这里只以ArithmeticException为例
+     * @param e
+     * @return
+     */
+    @ExceptionHandler(ArithmeticException.class)
+    @ResponseBody
+    public Result error(ArithmeticException e){
+        //e.printStackTrace();
+    	System.err.println(e.getMessage());
+        return Result.error().code(ResultCode.ARITHMETIC_EXCEPTION.getCode())
+                .message(ResultCode.ARITHMETIC_EXCEPTION.getMessage());
+    }
+
+    /**
+     * 处理业务异常,我们自己定义的异常
+     * @param e
+     * @return
+     */
+    @ExceptionHandler(BusinessException.class)
+    @ResponseBody
+    public Result error(BusinessException e){
+        //e.printStackTrace();
+        System.err.println(e.getErrMsg());
+        return Result.error().code(e.getCode())
+                .message(e.getErrMsg());
+    }
+
+}
diff --git a/len-common/src/main/java/com/len/response/Result.java b/len-common/src/main/java/com/len/response/Result.java
new file mode 100644
index 0000000000000000000000000000000000000000..7728ef223706d26628a756970a01e28e69e26489
--- /dev/null
+++ b/len-common/src/main/java/com/len/response/Result.java
@@ -0,0 +1,86 @@
+package com.len.response;
+
+import java.util.HashMap;
+import java.util.Map;
+
+import lombok.Data;
+
+@Data
+public class Result<T> {
+	
+    private Boolean success;
+
+    private Integer code;
+
+    private String message;
+    
+    private T data;
+    
+    /**
+     * 构造方法私有化,里面的方法都是静态方法
+     * 达到保护属性的作用
+     */
+    private Result(){
+
+    }
+
+    /**
+     * 这里是使用链式编程
+     */
+    public static <T> Result<T> ok(){
+        Result<T> result = new Result<T>();
+        result.setSuccess(true);
+        result.setCode(ResultCode.SUCCESS.getCode());
+        result.setMessage(ResultCode.SUCCESS.getMessage());
+        return result;
+    }
+
+    /**
+     * 自定义返回成功与否
+     * @param success
+     * @return
+     */
+    public Result<T> success(Boolean success){
+        this.setSuccess(success);
+        return this;
+    }
+
+    public Result<T> message(String message){
+        this.setMessage(message);
+        return this;
+    }
+
+    public Result<T> code(Integer code){
+        this.setCode(code);
+        return this;
+    }
+    
+    public static <T> Result<T> success(T data){
+    	Result<T> result = new Result<T>();
+        result.setSuccess(true);
+        result.setCode(ResultCode.SUCCESS.getCode());
+        result.setMessage(ResultCode.SUCCESS.getMessage());
+        result.setData(data);
+        return result;
+    }
+    
+    public static <T> Result<T> error(){
+        Result<T> result = new Result<T>();
+        result.setSuccess(false);
+        result.setCode(ResultCode.COMMON_FAIL.getCode());
+        result.setMessage(ResultCode.COMMON_FAIL.getMessage());
+        return result;
+    }
+    
+    
+    
+//    public Result data(String key,Object value){
+//        this.data.put(key,value);
+//        return this;
+//    }
+//
+//    public Result data(Map<String,Object> map){
+//        this.setData(map);
+//        return this;
+//    }
+}
diff --git a/len-common/src/main/java/com/len/response/ResultCode.java b/len-common/src/main/java/com/len/response/ResultCode.java
new file mode 100644
index 0000000000000000000000000000000000000000..ea39deab4ca067fe40588960f016911d9abe5939
--- /dev/null
+++ b/len-common/src/main/java/com/len/response/ResultCode.java
@@ -0,0 +1,109 @@
+package com.len.response;
+
+public enum ResultCode {
+	/* 成功 */
+    SUCCESS(200, "成功"),
+
+    /* 默认失败 */
+    COMMON_FAIL(999, "失败"),
+
+    /* 参数错误：1000～1999 */
+    /**
+     * 参数无效
+     */
+    PARAM_NOT_VALID(1001, "参数无效"),
+    /**
+     * 参数为空
+     */
+    PARAM_IS_BLANK(1002, "参数为空"),
+    /**
+     * 参数类型错误
+     */
+    PARAM_TYPE_ERROR(1003, "参数类型错误"),
+    /**
+     * 参数缺失
+     */
+    PARAM_NOT_COMPLETE(1004, "参数缺失"),
+
+    /* 用户错误 */
+    /**
+     * 用户未登录
+     */
+    USER_NOT_LOGIN(2001, "用户未登录"),
+    /**
+     * 账号已过期
+     */
+    USER_ACCOUNT_EXPIRED(2002, "账号已过期"),
+    /**
+     * 密码错误
+     */
+    USER_CREDENTIALS_ERROR(2003, "密码错误"),
+    /**
+     * 密码过期
+     */
+    USER_CREDENTIALS_EXPIRED(2004, "密码过期"),
+    /**
+     * 账号不可用
+     */
+    USER_ACCOUNT_DISABLE(2005, "账号不可用"),
+    /**
+     * 账号被锁定
+     */
+    USER_ACCOUNT_LOCKED(2006, "账号被锁定"),
+    /**
+     * 账号不存在
+     */
+    USER_ACCOUNT_NOT_EXIST(2007, "账号不存在"),
+    /**
+     * 账号已存在
+     */
+    USER_ACCOUNT_ALREADY_EXIST(2008, "账号已存在"),
+    /**
+     * 账号下线
+     */
+    USER_ACCOUNT_USE_BY_OTHERS(2009, "账号下线"),
+
+    /*部门错误*/
+    /**
+     * 部门不存在
+     */
+    DEPARTMENT_NOT_EXIST(3007, "部门不存在"),
+    /**
+     * 部门已存在
+     */
+    DEPARTMENT_ALREADY_EXIST(3008, "部门已存在"),
+
+    /* 业务错误 */
+    /**
+     * 没有权限
+     */
+    NO_PERMISSION(3001, "没有权限"),
+
+    /*运行时异常*/
+    /**
+     * 算数异常
+     */
+    ARITHMETIC_EXCEPTION(9001,"算数异常"),
+	/**
+	 * 查询无果
+	 */
+	NO_SEARCH(4001,"查询无果");
+	
+	private Integer code;
+
+	private String message;
+	
+	ResultCode(Integer code,String message){
+        this.code = code;
+        this.message = message;
+    }
+	
+	public Integer getCode() {
+		return code;
+	}
+
+	public String getMessage() {
+		return message;
+	}
+
+}
diff --git a/len-common/src/main/java/com/len/util/DataUtil.java b/len-common/src/main/java/com/len/util/DataUtil.java
new file mode 100644
index 0000000000000000000000000000000000000000..c4fb8f9bcfc337e7d60a74201e47d33cff655953
--- /dev/null
+++ b/len-common/src/main/java/com/len/util/DataUtil.java
@@ -0,0 +1,5 @@
+package com.len.util;
+
+public class DataUtil {
+
+}
diff --git a/pom.xml b/pom.xml
index 2fef7af9ac1d9c192f9c95a7eba84012de8ca410..ba6542b21bc231738c7d9aad1cdb30abc673e9f5 100644
--- a/pom.xml
+++ b/pom.xml
@@ -50,6 +50,9 @@
         <slf4j-api.version>1.7.25</slf4j-api.version>
         <validation-api.version>2.0.1.Final</validation-api.version>
         <hibernate-validator.version>6.0.10.Final</hibernate-validator.version>
+
+        <maven-javadoc-plugin.version>3.0.0</maven-javadoc-plugin.version>
+        <mybatis-generator-maven-plugin.version>1.3.6</mybatis-generator-maven-plugin.version>
     </properties>
 
     <repositories>
@@ -115,7 +118,7 @@
             <plugin>
                 <groupId>org.mybatis.generator</groupId>
                 <artifactId>mybatis-generator-maven-plugin</artifactId>
-                <version>1.3.6</version>
+                <version>${mybatis-generator-maven-plugin.version}</version>
                 <configuration>
                     <configurationFile><!--${basedir}-->len-web/src/main/resources/auto-config/mybatis-config.xml
                     </configurationFile>
@@ -127,7 +130,7 @@
             <plugin>
                 <groupId>org.apache.maven.plugins</groupId>
                 <artifactId>maven-javadoc-plugin</artifactId>
-                <version>3.0.0</version>
+                <version>${maven-javadoc-plugin.version}</version>
             </plugin>
         </plugins>
     </build>