#56,实验5和实验6

hzuapps · Jun 2, 2018 · 4f10053 · 4f10053
1 parent 5bef6a1
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diff --git a/soft1614080902345/App/Java/Json.java b/soft1614080902345/App/Java/Json.java
@@ -0,0 +1,99 @@
+package com.example.administrator;
+
+import android.content.Intent;
+import android.support.v7.app.AppCompatActivity;
+import android.os.Bundle;
+import android.util.Log;
+import android.view.View;
+import android.widget.ArrayAdapter;
+import android.widget.Button;
+import android.widget.ListView;
+
+import org.json.JSONArray;
+import org.json.JSONObject;
+
+import java.io.BufferedReader;
+import java.io.InputStream;
+import java.io.InputStreamReader;
+import java.net.HttpURLConnection;
+import java.net.URL;
+import java.util.ArrayList;
+import java.util.List;
+
+public class Json extends AppCompatActivity {
+    private String text;
+    private ListView listView;
+    private ArrayAdapter<String> adapter;
+    private List<String> list=new ArrayList<>();
+    @Override
+    protected void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        setContentView(R.layout.json);
+        listView=(ListView)findViewById(R.id.listview);
+        getjson();
+    }
+    public void getjson()
+    {
+        new Thread(new Runnable() {
+            @Override
+            public void run() {
+                try {
+                    URL url = new URL("https://raw.githubusercontent.com/chinesehope/android-labs-2018/master/soft1614080902345/message1.json");
+                    HttpURLConnection connection = (HttpURLConnection) url.openConnection();
+                    connection.setRequestMethod("GET");
+                    connection.setConnectTimeout(8000);
+                    connection.setReadTimeout(8000);
+                    connection.setUseCaches(false);
+                    connection.connect();
+                    InputStream in = connection.getInputStream();
+                    InputStreamReader input=new InputStreamReader(in);
+                    BufferedReader reader=new BufferedReader(input);
+                    if (connection.getResponseCode() == 200) {
+                        StringBuilder response = new StringBuilder();
+                        String Line;
+                        while ((Line = reader.readLine()) != null) {
+                            response.append(Line);
+                        }
+                        text = response.toString();
+                        Log.v("out---------------->",text);
+                        analyzejson();
+                    }
+                }
+                catch(Exception e)
+                {
+                    e.printStackTrace();
+                }
+                runOnUiThread(new Runnable() {
+                    @Override
+                    public void run() {
+                        adapter=new ArrayAdapter<String>(Json.this,android.R.layout.simple_list_item_1,list);
+                        listView.setAdapter(adapter);
+                    }
+                });
+            }
+        }).start();
+    }
+    public void analyzejson()
+    {
+        try{
+            JSONArray jsonArray=new JSONArray(text);
+            for(int a=0;a<jsonArray.length();a++)
+            {
+                JSONObject jsonObject=jsonArray.getJSONObject(a);
+                String number=jsonObject.getString("地点");
+                String number1=jsonObject.getString("时间");
+                String number2=jsonObject.getString("内容");
+                String add;
+                add=number+"    "+number1+"     "+number2;
+                list.add(add);
+                Log.v("结果",add);
+            }
+
+        }
+        catch (Exception e)
+        {
+            e.printStackTrace();
+        }
+    }
+
+}
diff --git a/soft1614080902345/App/Java/MainActivity.java b/soft1614080902345/App/Java/MainActivity.java
@@ -7,14 +7,15 @@
 import android.widget.Button;
 
 public class MainActivity extends AppCompatActivity {
-    private Button runbutton,run2button;
+    private Button runbutton,run2button,jsonbutton;
 
     @Override
     protected void onCreate(Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);
         setContentView(R.layout.activity_main);
         runbutton=(Button) findViewById(R.id.button1);
         run2button=(Button) findViewById(R.id.button2);
+        jsonbutton=(Button) findViewById(R.id.button);
         runbutton.setOnClickListener(new View.OnClickListener() {
             @Override
             public void onClick(View v) {
@@ -29,6 +30,13 @@ public void onClick(View v) {
                 startActivity(intent);
             }
         });
+        jsonbutton.setOnClickListener(new View.OnClickListener() {
+            @Override
+            public void onClick(View v) {
+                Intent intent =new Intent(MainActivity.this,Json.class);
+                startActivity(intent);
+            }
+        });
 
     }
 }
diff --git a/soft1614080902345/App/Main/AndroidManifest.xml b/soft1614080902345/App/Main/AndroidManifest.xml
@@ -30,6 +30,12 @@
             android:label="兼职页面">
 
         </activity>
+        <activity
+        android:name=".Json"
+        android:screenOrientation="portrait"
+        android:label="兼职页面">
+
+    </activity>
 
     </application>
 

diff --git a/soft1614080902345/App/res/layout/activity_main.xml b/soft1614080902345/App/res/layout/activity_main.xml
@@ -28,6 +28,16 @@
 
             tools:layout_editor_absoluteX="169dp"
             tools:layout_editor_absoluteY="272dp" />
+
+        <Button
+            android:id="@+id/button"
+            android:layout_marginTop="100dp"
+            android:layout_marginLeft="30dp"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+
+            android:text="解 码" />
+
         <Button
             android:layout_marginTop="100dp"
             android:layout_marginLeft="30dp"

diff --git a/soft1614080902345/App/res/layout/json.xml b/soft1614080902345/App/res/layout/json.xml
@@ -0,0 +1,19 @@
+<?xml version="1.0" encoding="utf-8"?>
+<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent">
+
+
+    <LinearLayout
+        android:layout_width="match_parent"
+        android:layout_height="match_parent"
+        android:orientation="vertical">
+
+        <ListView
+            android:id="@+id/listview"
+            android:layout_width="match_parent"
+            android:layout_height="match_parent"
+
+             />
+    </LinearLayout>
+</LinearLayout>
diff --git a/soft1614080902345/report6.md b/soft1614080902345/report6.md
@@ -0,0 +1,33 @@
+# 第六次实验 
+
+## 1、实验要求 
+1.在个人目录中创建一个表示数据的XML或JSON文件；
+
+2.数据文件代码提交之后从GitHub获取文件URL；
+
+3.在应用中通过网络编程访问GitHub的数据文件；
+
+4.在应用中解析并显示文件所包含的数据；
+
+5.将应用运行结果截图。
+
+## 2、实验步骤 
+1.通过网上的json在线编辑器，然后编写一个json文件，编写完下载到本地。
+
+2.然后把json文件提交到自己github上的库中
+
+3.然后在Android studio 上创建一个新的Activity,从github获取json文件URL,再通过BufferedReader对服务器的流进行读取，再调用函数进行json解析。
+
+4.在AndroidManifest.xml添加对应代码获取网络权限
+
+
+
+## 3、实验结果 
+我的Android应用第一个activity截图。
+![在Android SDK Manager中选择6.0库](https://raw.githubusercontent.com/chinesehope/android-labs-2018/master/soft1614080902345/%E5%AE%9E%E9%AA%8C6%E6%88%AA%E5%9B%BE2.jpg "配置教育网下载代理")
+
+点击按钮后跳转的activity.
+![在Android SDK Manager中选择6.0库](https://raw.githubusercontent.com/chinesehope/android-labs-2018/master/soft1614080902345/%E5%AE%9E%E9%AA%8C6%E6%88%AA%E5%9B%BE1.jpg "配置教育网下载代理")
+
+## 4、实验体会 
+1. 这个实验我有了对网络权限的理解，和对json解析的理解，通过这次实验，我学会了json文件的解析，以及Liteview的使用。