OpenContext添加charset字段

sop-support/sop-service-support/src/main/java/com/gitee/sop/support/context/DefaultOpenContext.java

@@ -54,6 +54,11 @@ public class DefaultOpenContext extends OpenContext implements Serializable {
      */
     private Locale locale;
 
+    /**
+     * charset
+     */
+    private String charset;
+
     public void initContext() {
         this.setContext(this);
     }

sop-support/sop-service-support/src/main/java/com/gitee/sop/support/context/OpenContext.java

@@ -49,6 +49,11 @@ public abstract class OpenContext {
      */
     public abstract Locale getLocale();
 
+    /**
+     * 获取charset
+     */
+    public abstract String getCharset();
+
     protected void setContext(OpenContext openContext) {
         THREAD_LOCAL.set(openContext);
     }