修复0x8302消息指令

src/JT808.Protocol.Test/MessageBody/JT808_0x8302Test.cs

@@ -1,5 +1,6 @@
 using JT808.Protocol.Extensions;
 using JT808.Protocol.MessageBody;
+using System.Collections.Generic;
 using Xunit;
 
 namespace JT808.Protocol.Test.MessageBody
@@ -12,34 +13,51 @@ namespace JT808.Protocol.Test.MessageBody
         {
             JT808_0x8302 jT808_0X8302 = new JT808_0x8302
             {
-                AnswerId = 128,
-                AnswerContent = "123456",
+                Answers=new List<JT808_0x8302.Answer>()
+                {
+                    new JT808_0x8302.Answer()
+                    {
+                        Id = 128,
+                        Content = "123456",
+                    },
+                    new JT808_0x8302.Answer()
+                    {
+                        Id = 127,
+                        Content = "123457",
+                    }
+                },
                 Flag = 1,
                 Issue = "sdddaff"
             };
             var hex = JT808Serializer.Serialize(jT808_0X8302).ToHexString();
             //01
             //07
-            //73 64 64 64 61 66 66
+            //73 64 64 64 61 66 66 
             //80
-            //06 00 
-            //31 32 33 34 35 36
-            //010006646464616666800000313233343536
-            //010773646464616666800006313233343536
-            Assert.Equal("010773646464616666800006313233343536", hex);
+            //00 06
+            //31 32 33 34 35 36 
+            //7F
+            //00 06
+            //31 32 33 34 35 37
+            Assert.Equal("0107736464646166668000063132333435367F0006313233343537", hex);
         }
 
         [Fact]
         public void Test1_1()
         {
-            byte[] bytes = "010773646464616666800006313233343536".ToHexBytes();
+            byte[] bytes = "0107736464646166668000063132333435367F0006313233343537".ToHexBytes();
             JT808_0x8302 jT808_0X8302 = JT808Serializer.Deserialize<JT808_0x8302>(bytes);
-            Assert.Equal(128, jT808_0X8302.AnswerId);
-            Assert.Equal("123456", jT808_0X8302.AnswerContent);
             Assert.Equal(1, jT808_0X8302.Flag);
-            Assert.Equal("sdddaff", jT808_0X8302.Issue);
-            Assert.Equal(6, jT808_0X8302.AnswerContentLength);
             Assert.Equal(7, jT808_0X8302.IssueContentLength);
+            Assert.Equal("sdddaff", jT808_0X8302.Issue);
+
+            Assert.Equal(6, jT808_0X8302.Answers[0].ContentLength);
+            Assert.Equal(128, jT808_0X8302.Answers[0].Id);
+            Assert.Equal("123456", jT808_0X8302.Answers[0].Content);
+
+            Assert.Equal(6, jT808_0X8302.Answers[1].ContentLength);
+            Assert.Equal(127, jT808_0X8302.Answers[1].Id);
+            Assert.Equal("123457", jT808_0X8302.Answers[1].Content);
         }
     }
 }

src/JT808.Protocol/Formatters/MessageBodyFormatters/JT808_0x8302_Formatter.cs

@@ -3,6 +3,7 @@ using JT808.Protocol.MessageBody;
 using JT808.Protocol.Interfaces;
 using System;
 using JT808.Protocol.MessagePack;
+using System.Collections.Generic;
 
 namespace JT808.Protocol.Formatters.MessageBodyFormatters
 {
@@ -14,9 +15,22 @@ namespace JT808.Protocol.Formatters.MessageBodyFormatters
             jT808_0X8302.Flag = reader.ReadByte();
             jT808_0X8302.IssueContentLength = reader.ReadByte();
             jT808_0X8302.Issue = reader.ReadString(jT808_0X8302.IssueContentLength);
-            jT808_0X8302.AnswerId = reader.ReadByte();
-            jT808_0X8302.AnswerContentLength = reader.ReadUInt16();
-            jT808_0X8302.AnswerContent = reader.ReadString(jT808_0X8302.AnswerContentLength);
+            jT808_0X8302.Answers = new List<JT808_0x8302.Answer>();
+            while (reader.ReadCurrentRemainContentLength() > 0)
+            {
+                try
+                {
+                    JT808_0x8302.Answer answer = new JT808_0x8302.Answer();
+                    answer.Id = reader.ReadByte();
+                    answer.ContentLength = reader.ReadUInt16();
+                    answer.Content = reader.ReadString(answer.ContentLength);
+                    jT808_0X8302.Answers.Add(answer);
+                }
+                catch (Exception ex)
+                {
+                    break;
+                }
+            }
             return jT808_0X8302;
         }
 
@@ -28,11 +42,17 @@ namespace JT808.Protocol.Formatters.MessageBodyFormatters
             writer.WriteString(value.Issue);
             ushort issueLength = (ushort)(writer.GetCurrentPosition() - issuePosition - 1);
             writer.WriteByteReturn((byte)issueLength, issuePosition);
-            writer.WriteByte(value.AnswerId);
-            writer.Skip(2, out int answerPosition);
-            writer.WriteString(value.AnswerContent);
-            ushort answerLength = (ushort)(writer.GetCurrentPosition() - answerPosition - 2);
-            writer.WriteUInt16Return(answerLength, answerPosition);
+            if(value.Answers!=null && value.Answers.Count > 0)
+            {
+                foreach(var item in value.Answers)
+                {
+                    writer.WriteByte(item.Id);
+                    writer.Skip(2, out int answerPosition);
+                    writer.WriteString(item.Content);
+                    ushort answerLength = (ushort)(writer.GetCurrentPosition() - answerPosition - 2);
+                    writer.WriteUInt16Return(answerLength, answerPosition);
+                }
+            }
         }
     }
 }

src/JT808.Protocol/JT808.Protocol.xml

@@ -4837,18 +4837,23 @@
             问题文本，经 GBK 编码，长度为 N
             </summary>
         </member>
-        <member name="P:JT808.Protocol.MessageBody.JT808_0x8302.AnswerId">
+        <member name="P:JT808.Protocol.MessageBody.JT808_0x8302.Answers">
+            <summary>
+            候选答案列表 
+            </summary>
+        </member>
+        <member name="P:JT808.Protocol.MessageBody.JT808_0x8302.Answer.Id">
             <summary>
             答案 ID
             </summary>
         </member>
-        <member name="P:JT808.Protocol.MessageBody.JT808_0x8302.AnswerContentLength">
+        <member name="P:JT808.Protocol.MessageBody.JT808_0x8302.Answer.ContentLength">
             <summary>
             答案内容长度
             答案内容字段字节长度
             </summary>
         </member>
-        <member name="P:JT808.Protocol.MessageBody.JT808_0x8302.AnswerContent">
+        <member name="P:JT808.Protocol.MessageBody.JT808_0x8302.Answer.Content">
             <summary>
             答案内容 
             答案内容，经 GBK 编码

src/JT808.Protocol/MessageBody/JT808_0x8302.cs

@@ -1,5 +1,6 @@
 using JT808.Protocol.Attributes;
 using JT808.Protocol.Formatters.MessageBodyFormatters;
+using System.Collections.Generic;
 
 namespace JT808.Protocol.MessageBody
 {
@@ -25,18 +26,26 @@ namespace JT808.Protocol.MessageBody
         /// </summary>
         public string Issue { get; set; }
         /// <summary>
-        /// 答案 ID
+        /// 候选答案列表 
         /// </summary>
-        public byte AnswerId { get; set; }
-        /// <summary>
-        /// 答案内容长度
-        /// 答案内容字段字节长度
-        /// </summary>
-        public ushort AnswerContentLength { get; set; }
-        /// <summary>
-        /// 答案内容 
-        /// 答案内容，经 GBK 编码
-        /// </summary>
-        public string AnswerContent { get; set; }
+        public List<Answer> Answers { get; set; }
+
+        public class Answer
+        {
+            /// <summary>
+            /// 答案 ID
+            /// </summary>
+            public byte Id { get; set; }
+            /// <summary>
+            /// 答案内容长度
+            /// 答案内容字段字节长度
+            /// </summary>
+            public ushort ContentLength { get; set; }
+            /// <summary>
+            /// 答案内容 
+            /// 答案内容，经 GBK 编码
+            /// </summary>
+            public string Content { get; set; }
+        }
     }
 }