用户购物车是否为空展示不同界面

CatApp_android_End/src/main/java/com/example/cat/controller/CatProductController.java

@@ -142,7 +142,7 @@ public class CatProductController {
                 file.transferTo(destFile);
             }
             map.put("flag", true);
-            map.put("data", "http://10.21.120.101:8081/uploaded/" + fileName);
+            map.put("data", "http://10.21.91.105:8081/uploaded/" + fileName);
             return map;
         } catch (Exception e) {
             map.put("flag", false);

CatApp_android_End/src/main/java/com/example/cat/controller/CatShoppingCartController.java

@@ -88,7 +88,7 @@ public class CatShoppingCartController {
                 file.transferTo(destFile);
             }
             map.put("flag", true);
-            map.put("data", "http://10.21.120.101:8081/uploaded/" + fileName);
+            map.put("data", "http://10.21.91.105:8081/uploaded/" + fileName);
             return map;
         } catch (Exception e) {
             map.put("flag", false);

CatApp_android_frontEnd/app/src/main/java/com/example/catapp/activity/IndexActivity.java

@@ -4,25 +4,34 @@ import android.app.Activity;
 import android.app.FragmentTransaction;
 import android.content.Intent;
 import android.os.Bundle;
+import android.util.Log;
 import android.view.View;
 import android.widget.LinearLayout;
 
 import androidx.annotation.Nullable;
 
 import com.example.catapp.R;
+import com.example.catapp.entity.CatProductPack;
+import com.example.catapp.entity.ShoppingCartPack;
 import com.example.catapp.fragment.IndexFragment;
 import com.example.catapp.fragment.PearsonFragment;
 import com.example.catapp.fragment.ProductFragment;
 import com.example.catapp.fragment.ShoppingCartFragment;
+import com.example.catapp.netrequest.OkHttpShoppingcart;
 import com.example.catapp.service.TimeService;
 
+import java.io.IOException;
+import java.util.ArrayList;
+import java.util.List;
+
 public class IndexActivity extends Activity implements View.OnClickListener {
     private IndexFragment indexFragment;
     private ProductFragment productFragment;
     private ShoppingCartFragment shoppingCartFragment;
     private PearsonFragment pearsonFragment;
     private LinearLayout indexLine, productLine, shoppingCartLine, pearsonLine;
-
+    public static List<ShoppingCartPack> cartList = new ArrayList<>();
+    private Integer userId=1;
     @Override
     public void onCreate(@Nullable Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);
@@ -31,6 +40,8 @@ public class IndexActivity extends Activity implements View.OnClickListener {
         initIndexFragment();
         Thread thread = new Thread(runnable);
         thread.start();
+        check();//检查用户购物车是否为空
+        Log.d("InActivity get cartList.size() ：",""+cartList.size());
     }
 
     /**
@@ -45,6 +56,7 @@ public class IndexActivity extends Activity implements View.OnClickListener {
         shoppingCartLine.setOnClickListener(this);
         pearsonLine = findViewById(R.id.content_pearson);
         pearsonLine.setOnClickListener(this);
+        getUserId();
     }
 
     @Override
@@ -65,6 +77,15 @@ public class IndexActivity extends Activity implements View.OnClickListener {
         }
     }
 
+    /**
+     * 获取userId来判断用户购物车是否为空
+     */
+    private void getUserId() {
+        Intent intent = IndexActivity.this.getIntent();
+        Bundle bundle = intent.getExtras();
+        userId=(Integer)bundle.getInt("id");
+        Log.d("IndexActivity.userId",""+userId);
+    }
     /**
      * 初始化首页Fragment
      */
@@ -128,4 +149,23 @@ public class IndexActivity extends Activity implements View.OnClickListener {
         startService(intent);
     };
 
+    /**
+     *发送网络检查用户购物车是否为空
+     */
+    public void check(){
+        new Thread(new Runnable() {
+            @Override
+            public void run() {
+                OkHttpShoppingcart okHttpShoppingcart=new OkHttpShoppingcart();
+                try {
+                    if(okHttpShoppingcart.getShoppingCartPack(userId)==null)return;
+                    cartList=okHttpShoppingcart.getShoppingCartPack(userId);
+                    Log.d("check()",""+(cartList.size()));
+                } catch (IOException e) {
+                    throw new RuntimeException(e);
+                }
+            }
+        }).start();
+    }
+
 }

CatApp_android_frontEnd/app/src/main/java/com/example/catapp/fragment/ShoppingCartFragment.java

@@ -5,17 +5,21 @@ import android.app.FragmentTransaction;
 import android.os.Bundle;
 import android.os.Handler;
 import android.os.Message;
+import android.util.Log;
 import android.view.LayoutInflater;
 import android.view.View;
 import android.view.ViewGroup;
+import android.widget.AdapterView;
 import android.widget.Button;
 import android.widget.GridView;
+import android.widget.ImageView;
 import android.widget.TextView;
 
 import androidx.annotation.NonNull;
 import androidx.annotation.Nullable;
 
 import com.example.catapp.R;
+import com.example.catapp.activity.IndexActivity;
 import com.example.catapp.adapter.ProductAdapter;
 import com.example.catapp.adapter.ShoppingCartAdapter;
 import com.example.catapp.entity.CatProductPack;
@@ -34,23 +38,50 @@ public class ShoppingCartFragment extends Fragment implements View.OnClickListen
     private ProductFragment productFragment;
     private GridView productGridView;
     private TextView usernameText;
-    private Integer userId=2;
+    Button left1;
+    private Integer userId=13;
    private List<CatProductPack> catProductList= new ArrayList<>();
     Handler h=null;
+
+    @Override
+    public void onCreate(@Nullable Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        //给购物车集合赋值，用以判断界面的展示
+        cartList=IndexActivity.cartList;
+        Log.d("ShoppingCartFragment onCrate init cartList",""+cartList);
+
+    }
+
+//    @Override
+//    public void onActivityCreated(@Nullable Bundle savedInstanceState) {
+//        super.onActivityCreated(savedInstanceState);
+//        productGridView.setOnItemClickListener(new AdapterView.OnItemClickListener() {
+//            @Override
+//            public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
+//                FragmentTransaction transaction = getFragmentManager().beginTransaction();
+//                if (productFragment == null) {
+//                    productFragment = new ProductFragment();
+//                }
+//                transaction.replace(R.id.main_content0, productFragment);
+//                transaction.commit();
+//
+//            }
+//        });
+//    }
+
     @Nullable
     @Override
     public View onCreateView(@NonNull LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {
         View view;
-//        if (cartList.size() > 0) {
+        cartList=IndexActivity.cartList;
-//            //有商品
+        if (cartList.size() > 0) {
+            //有商品
             view = LayoutInflater.from(getActivity()).inflate(R.layout.cart_have_product, container, false);
-//        } else {
+            linkHttp(view);
-//            view = LayoutInflater.from(getActivity()).inflate(R.layout.cart_no_product, container, false);
+        } else {
-//        }
+            view = LayoutInflater.from(getActivity()).inflate(R.layout.cart_no_product, container, false);
+        }
         init(view);
-        check();
-//        if (cartList.size() > 0)
-            linkHttp();
         return view;
     }
 
@@ -59,12 +90,15 @@ public class ShoppingCartFragment extends Fragment implements View.OnClickListen
      */
     private void init(View view) {
         usernameText=view.findViewById(R.id.username);
-        productGridView = view.findViewById(R.id.cart_productList);
+        //productGridView = view.findViewById(R.id.cart_productList);
+        if (cartList.size() > 0) {
 
-//            walkButton = view.findViewById(R.id.random_search);
+        }
-//            walkButton.setOnClickListener(this);
+        else {
+            walkButton = view.findViewById(R.id.random_search);
+            walkButton.setOnClickListener(this);
+        }
 
-        //productGridView = view.findViewById(R.id.cart_productList);
         setData();
     }
     private void setData() {
@@ -75,7 +109,9 @@ public class ShoppingCartFragment extends Fragment implements View.OnClickListen
     }
     @Override
     public void onClick(View v) {
-        if (cartList.size() > 0) {}
+        if (cartList.size() > 0) {
+
+        }
         else {
             switch (v.getId()) {
                 case R.id.random_search:
@@ -91,29 +127,11 @@ public class ShoppingCartFragment extends Fragment implements View.OnClickListen
         }
     }
 
+
     /**
-     *
+     *发送网络请求当前用户的购物车信息
      */
-    public void check(){
+    public void linkHttp(View view){
-        new Thread(new Runnable() {
-            @Override
-            public void run() {
-                OkHttpShoppingcart okHttpShoppingcart=new OkHttpShoppingcart();
-                try {
-                   // catProductList= okHttpShoppingcart.getProductPack(userId);
-                    System.out.println(cartList.size() );
-                    cartList=okHttpShoppingcart.getShoppingCartPack(userId);
-                    System.out.println(cartList.get(0).getNum());
-                    System.out.println(cartList.size());
-                    System.out.println(cartList.size());
-                    System.out.println(cartList.size());
-                } catch (IOException e) {
-                    throw new RuntimeException(e);
-                }
-            }
-        }).start();
-    }
-    public void linkHttp(){
         h =new Handler() {
             @Override
             public void handleMessage(@NonNull Message msg) {
@@ -128,8 +146,9 @@ public class ShoppingCartFragment extends Fragment implements View.OnClickListen
             public void run() {
                 OkHttpShoppingcart okHttpShoppingcart=new OkHttpShoppingcart();
                 try {
+                    productGridView = view.findViewById(R.id.cart_productList);
                     catProductList= okHttpShoppingcart.getProductPack(userId);
-                    //cartList=okHttpShoppingcart.getShoppingCartPack(userId);
+                    cartList=okHttpShoppingcart.getShoppingCartPack(userId);
                 } catch (IOException e) {
                     throw new RuntimeException(e);
                 }

CatApp_android_frontEnd/app/src/main/java/com/example/catapp/netrequest/OkHttpClientProduct.java

@@ -20,6 +20,7 @@ import okhttp3.Response;
 
 public class OkHttpClientProduct {
 
+    public static String Url="http://10.21.91.105:8081";
     /**
      * 查询商品信息
      *
@@ -29,7 +30,7 @@ public class OkHttpClientProduct {
         OkHttpClient okHttpClient = new OkHttpClient();
 
         Request request = new Request.Builder()
-                .url("http://10.21.120.101:8081/orange/product/search")
+                .url(Url+"/orange/product/search")
                 .build();
         Response response = okHttpClient.newCall(request).execute();
 

CatApp_android_frontEnd/app/src/main/java/com/example/catapp/netrequest/OkHttpMessage.java

@@ -22,7 +22,7 @@ public class OkHttpMessage {
         OkHttpClient okHttpClient = new OkHttpClient();
         Request request = new Request.Builder()
                 //.url("http://192.168.0.102:8081/orange/message/consumeMessage")
-                .url("http://10.21.120.101:8081/orange/message/consumeMessage")
+                .url(OkHttpClientProduct.Url+"/orange/message/consumeMessage")
                 .build();
         Response response = okHttpClient.newCall(request).execute();
         JSONObject jsonObject = JSON.parseObject(Objects.requireNonNull(response.body()).string());
@@ -31,7 +31,7 @@ public class OkHttpMessage {
          * 消费完消息以后，设置消息为已读
          */
         Request request1 = new Request.Builder()
-                .url("http://10.21.120.101:8081/orange/message/updateMessage")
+                .url(OkHttpClientProduct.Url+"/orange/message/updateMessage")
                 .build();
         okHttpClient.newCall(request1).execute();
         return orangeMessage;

CatApp_android_frontEnd/app/src/main/java/com/example/catapp/netrequest/OkHttpShoppingcart.java

@@ -2,6 +2,7 @@ package com.example.catapp.netrequest;
 
 import android.graphics.Bitmap;
 import android.graphics.BitmapFactory;
+import android.util.Log;
 
 import com.alibaba.fastjson.JSON;
 import com.alibaba.fastjson.JSONObject;
@@ -23,13 +24,13 @@ import okhttp3.RequestBody;
 import okhttp3.Response;
 
 public class OkHttpShoppingcart {
-//shoppingCart
+
     /**
-     * 查询商品信息
+     * 查询当前登录用户的商品信息
-     *
+     * @param userId 用户id
      * @return
+     * @throws IOException
      */
-
     public List<CatProduct> getProduct(Integer userId) throws IOException {
         OkHttpClient okHttpClient = new OkHttpClient();
         //数据类型为json格式
@@ -39,7 +40,7 @@ public class OkHttpShoppingcart {
         RequestBody requestBody = RequestBody.create(jsonStr, mediaType);
 
         Request request = new Request.Builder()
-                .url("http://10.21.120.101:8081/orange/shoppingcart/search1")
+                .url(OkHttpClientProduct.Url+"/orange/shoppingcart/search1")
                 .post(requestBody)
                 .build();
         Response response = okHttpClient.newCall(request).execute();
@@ -52,6 +53,12 @@ public class OkHttpShoppingcart {
         return list;
     }
 
+    /**
+     * 获取当前登录用户的购物车信息
+     * @param userId 用户id
+     * @return
+     * @throws IOException
+     */
     public List<ShoppingCart> getShoppingCart(Integer userId) throws IOException {
         OkHttpClient okHttpClient = new OkHttpClient();
 
@@ -61,22 +68,16 @@ public class OkHttpShoppingcart {
         String jsonStr = JSONObject.toJSONString(userId);
         RequestBody requestBody = RequestBody.create(jsonStr, mediaType);
         Request request = new Request.Builder()
-                .url("http://10.21.120.101:8081/orange/shoppingcart/sharecropping")
+                .url(OkHttpClientProduct.Url+"/orange/shoppingcart/sharecropping")
                 .post(requestBody)
                 .build();
         Response response = okHttpClient.newCall(request).execute();
-        System.out.println(response.isSuccessful());
+        Log.d("getShoppingCart request is :",""+response.isSuccessful());
-        System.out.println(response.isSuccessful());
         String responseStr = response.body().string();
         JSONObject jsonObject = JSON.parseObject(Objects.requireNonNull(responseStr));
         List<ShoppingCart> list = JSON.parseObject(jsonObject.getString("data"), new TypeReference<List<ShoppingCart>>() {
         });
-        System.out.println(list.get(0).getNum());
+        Log.d("list",""+(list!=null));
-        System.out.println(list.get(0).getNum());
-        System.out.println(list.get(0).getNum());
-        System.out.println(list.get(0).getNum());
-        System.out.println(list.get(0).getNum());
-
         return list;
     }
 
@@ -100,17 +101,17 @@ public class OkHttpShoppingcart {
 
     }
 
+
     /**
-     * 封装信息
+     * 封装当前用户的商品信息
-     *
+     * @param userId
      * @return
      * @throws IOException
      */
-
     public List<CatProductPack> getProductPack(Integer userId) throws IOException {
         List<CatProductPack> packList = new ArrayList<>();
         List<CatProduct> list = getProduct(userId);
-
+        if(list==null)return null;
         for (CatProduct catProduct : list) {
             CatProductPack catProductPack = new CatProductPack();
             catProductPack.setId(catProduct.getId());
@@ -129,9 +130,17 @@ public class OkHttpShoppingcart {
         return packList;
     }
 
+    /**
+     * 封装当前用户的购物车信息
+     * @param userId
+     * @return
+     * @throws IOException
+     */
     public List<ShoppingCartPack> getShoppingCartPack(Integer userId) throws IOException {
         List<ShoppingCartPack> packList = new ArrayList<>();
         List<ShoppingCart> list = getShoppingCart(userId);
+        if(list==null)return null;
+        else {
         for (ShoppingCart catProduct : list) {
             ShoppingCartPack catProductPack = new ShoppingCartPack();
             catProductPack.setId(catProduct.getId());
@@ -139,7 +148,8 @@ public class OkHttpShoppingcart {
             catProductPack.setProductId(catProduct.getProductId());
             catProductPack.setNum(catProduct.getNum());
             packList.add(catProductPack);
+            System.out.println(6666666);
         }
-        return packList;
+        return packList;}
     }
 }

CatApp_android_frontEnd/app/src/main/java/com/example/catapp/netrequest/OkHttpUser.java

@@ -29,7 +29,7 @@ public class OkHttpUser {
 
         RequestBody requestBody = RequestBody.create(jsonStr, mediaType);
         Request request = new Request.Builder()
-                .url("http://10.21.120.101:8081/orange/user/login")
+                .url(OkHttpClientProduct.Url+"/orange/user/login")
                 .post(requestBody)
                 .build();
 
@@ -58,7 +58,7 @@ public class OkHttpUser {
         String jsonStr = JSONObject.toJSONString(catUser);
         RequestBody requestBody = RequestBody.create(jsonStr, mediaType);
         Request request = new Request.Builder()
-                .url("http://10.21.120.101:8081/orange/user/register")
+                .url(OkHttpClientProduct.Url+"/orange/user/register")
                 .post(requestBody)
                 .build();
         Response response = okHttpClient.newCall(request).execute();

CatApp_android_frontEnd/app/src/main/res/layout/shoppingcart_detail_content.xml

@@ -3,7 +3,8 @@
     android:layout_width="match_parent"
     android:layout_height="match_parent"
     android:background="#14FFEB3B"
-    android:orientation="vertical">
+    android:orientation="vertical"
+    >
 
     <ImageView
         android:id="@+id/category_product_image"
@@ -34,16 +35,18 @@
         android:gravity="center"
         android:textColor="#050505"
         android:textSize="16sp" />
-
+    <Button
-    <ImageView
         android:id="@+id/left"
-        android:layout_width="30dp"
+        android:layout_width="48dp"
-        android:layout_height="30dp"
+        android:layout_height="48dp"
-        android:layout_gravity="center"
         android:layout_marginLeft="40dp"
         android:layout_marginTop="55dp"
         android:layout_toRightOf="@id/category_product_price"
-        android:src="@drawable/left" />
+        android:background="@drawable/left"
+        android:text="-"
+        android:textColor="#070707"
+        android:textSize="18sp"
+         />
     <TextView
         android:id="@+id/num"
         android:layout_width="wrap_content"
@@ -55,14 +58,17 @@
         android:background="#00FEFEFE"
         android:textColor="#050505"
         android:textSize="16sp" />
-    <ImageView
+    <Button
         android:id="@+id/right"
-        android:layout_width="40dp"
+        android:layout_width="48dp"
-        android:layout_height="40dp"
+        android:layout_height="48dp"
         android:layout_gravity="center"
         android:layout_marginLeft="20dp"
         android:layout_marginTop="50dp"
         android:layout_toRightOf="@id/num"
-        android:src="@drawable/right" />
+        android:background="@drawable/right"
+        android:text="+"
+        android:textColor="#1C1C1C"
+        android:textSize="18sp"/>
 
 </RelativeLayout>