1.优化主播代码模块代码，添加统一异常处理

src/main/java/vvpkassistant/common/ErrorCode.java

@@ -0,0 +1,44 @@
+package vvpkassistant.common;
+
+/**
+ * 自定义错误码
+ *
+ * @author <a href="https://github.com/liyupi">程序员鱼皮</a>
+ * @from <a href="https://yupi.icu">编程导航知识星球</a>
+ */
+public enum ErrorCode {
+
+    SUCCESS(0, "ok"),
+    ADD_FAILED(1, "添加失败"),
+    DELETE_FAILED(2, "删除失败"),
+    UPDATE_FAILED(2, "删除失败"),
+    ANCHOR_ALREADY_EXISTS(101,"主播已存在"),
+    ANCHOR_HAS_PKRECORD(102,"主播存在PK记录"),
+    SYSTEM_ERROR(50000, "系统错误"),
+    PARAMS_ERROR(40000, "请求参数错误")
+    ;
+
+    /**
+     * 状态码
+     */
+    private final int code;
+
+    /**
+     * 信息
+     */
+    private final String message;
+
+    ErrorCode(int code, String message) {
+        this.code = code;
+        this.message = message;
+    }
+
+    public int getCode() {
+        return code;
+    }
+
+    public String getMessage() {
+        return message;
+    }
+
+}