diff --git a/app/build.gradle b/app/build.gradle
index 13cf503..eaafd26 100644
--- a/app/build.gradle
+++ b/app/build.gradle
@@ -100,4 +100,7 @@ dependencies {
     }
     // 显示错误提示 https://github.com/nhaarman/supertooltips
     implementation 'com.nhaarman.supertooltips:library:3.0.0'
+    // 网络请求包 https://square.github.io/retrofit/
+    implementation 'com.squareup.retrofit2:retrofit:2.9.0'
+    implementation 'com.squareup.retrofit2:converter-gson:2.9.0'
 }
\ No newline at end of file
diff --git a/app/src/main/java/com/navinfo/volvo/http/NavinfoVolvoCall.kt b/app/src/main/java/com/navinfo/volvo/http/NavinfoVolvoCall.kt
new file mode 100644
index 0000000..97d342b
--- /dev/null
+++ b/app/src/main/java/com/navinfo/volvo/http/NavinfoVolvoCall.kt
@@ -0,0 +1,23 @@
+package com.navinfo.volvo.http
+
+import retrofit2.Retrofit
+import retrofit2.converter.gson.GsonConverterFactory
+
+class NavinfoVolvoCall {
+    private val retrofit by lazy {
+        Retrofit.Builder().baseUrl("http://ec2-52-81-73-5.cn-north-1.compute.amazonaws.com.cn:8088/")
+            .addConverterFactory(GsonConverterFactory.create())
+            .build()
+    }
+    companion object {
+        private var instance: NavinfoVolvoCall? = null
+            get() {
+                if (field == null) {
+                    field = NavinfoVolvoCall()
+                }
+                return field
+            }
+    }
+
+
+}
\ No newline at end of file
diff --git a/app/src/main/java/com/navinfo/volvo/http/NavinfoVolvoService.kt b/app/src/main/java/com/navinfo/volvo/http/NavinfoVolvoService.kt
new file mode 100644
index 0000000..52ea7ca
--- /dev/null
+++ b/app/src/main/java/com/navinfo/volvo/http/NavinfoVolvoService.kt
@@ -0,0 +1,23 @@
+package com.navinfo.volvo.http
+
+import retrofit2.http.Body
+import retrofit2.http.Multipart
+import retrofit2.http.POST
+import retrofit2.http.Part
+import java.io.File
+
+interface NavinfoVolvoService {
+    @POST("/navi/cardDelivery/insertCardByApp")
+    fun insertCardByApp(@Body insertData: MutableMap<String, String>)
+    @POST("/navi/cardDelivery/updateCardByApp")
+    fun updateCardByApp(@Body updateData: MutableMap<String, String>)
+    @POST("/navi/cardDelivery/queryCardListByApp")
+    fun queryCardListByApp(@Body queryData: MutableMap<String, String>)
+    @POST("/navi/cardDelivery/deleteCardByApp")
+    fun deleteCardByApp(@Body deleteData: MutableMap<String, String>)
+    @POST("/img/upload")
+    @Multipart
+    fun uploadAttachment(@Part("picture") attachmentFile: File)
+    @POST("/img/download")
+    fun downLoadAttachment(@Body downloadData: MutableMap<String, String>)
+}
\ No newline at end of file