修改options为list

src/main/java/edu/nju/entities/Item.java

@@ -30,10 +30,10 @@ public class Item implements java.io.Serializable {
 
     private List<String> attachment_locations;
 
-    private String[] options;
+    private List<String> options;
 
     @PersistenceConstructor
-    public Item(String id, String description, List<String> img_urls, boolean isRequired, boolean isMultiple, List<String> attachment_locations, String[] options, String job_id) {
+    public Item(String id, String description, List<String> img_urls, boolean isRequired, boolean isMultiple, List<String> attachment_locations, List<String> options, String job_id) {
         this.id = id;
         this.description = description;
         this.img_urls = img_urls;
@@ -92,11 +92,11 @@ public class Item implements java.io.Serializable {
         this.attachment_locations = attachment_locations;
     }
 
-    public String[] getOptions() {
+    public List<String> getOptions() {
         return options;
     }
 
-    public void setOptions(String[] options) {
+    public void setOptions(List<String> options) {
         this.options = options;
     }