高德云存储

云存储：

上一节我们介绍了怎么实现云检索的两种方式（1.http协议，2.android平台sdk）

今天我们介绍云存储操作（增删改）

定义URL：

    // CREATE
    public final static String CREATE_TABLE = "http://yuntuapi.amap.com/datamanage/table/create?";
    // QUERY
    public final static String LOCAL_QUERY = "http://yuntuapi.amap.com/datasearch/local?";
    public final static String AROUND_QUERY = "http://yuntuapi.amap.com/datasearch/around?";
    public final static String POLYGON_QUERY = "http://yuntuapi.amap.com/datasearch/polygon?";
    public final static String ID_QUERY = "http://yuntuapi.amap.com/datasearch/id?";
    // INSERT
    public final static String INSERT = "http://yuntuapi.amap.com/datamanage/data/create?";
    public final static String INSERT_BATCH_= "http://yuntuapi.amap.com/datamanage/data/batchcreate?";
    public final static String INSERT_BATCH_IMPORTSTATUS = "http://yuntuapi.amap.com/datamanage/batch/importstatus?";
    // UPDATE
    public final static String UPDATE = "http://yuntuapi.amap.com/datamanage/data/update?";
    // DELETE
    public final static String DELETE = "http://yuntuapi.amap.com/datamanage/data/delete?";

创建TABLE：

public List<NameValuePair> getPostDatas(String tableName) {
        List<NameValuePair> formparams = new ArrayList<NameValuePair>();
        formparams.add(new BasicNameValuePair("key", HTTPUtils.WEBAPIKEY));
        formparams.add(new BasicNameValuePair("name", tableName));
        return formparams;
    }     
     
public void doPost() {
        try {
            HttpClient httpclient = new DefaultHttpClient();
            HttpPost httppost = new HttpPost(CREATE_TABLE);
            httppost.addHeader("Content-Type", "application/x-www-form-urlencoded");
            httppost.setEntity(new UrlEncodedFormEntity(getPostDatas("newTable"), "UTF-8"));
            HttpResponse response = httpclient.execute(httppost);
            int code = response.getStatusLine().getStatusCode();
            if (code == 200) {
                String recieve = EntityUtils.toString(response.getEntity());
                System.out.println(recieve);
            }
        } catch (UnsupportedEncodingException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        } catch (ClientProtocolException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        } catch (IOException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }
    }

插入数据：

private final static String[] LOCATION_FIELD = new String[]{"_id","_name","_address"}; 
     
public List<NameValuePair> insertData(String tableId, String[] datas) {
        try {
            JSONObject data = new JSONObject();
            for (int i = 1; i < LOCATION_FIELD.length; i++)
                data.put(LOCATION_FIELD[i], datas[i - 1]); 
            return toNameValuePairData(data.toString(), tableId);
        } catch (JSONException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }
        return null;
    }
    
private List<NameValuePair> toNameValuePairData(String data,String tableid ){
        List<NameValuePair> formparams = new ArrayList<NameValuePair>();
        formparams.add(new BasicNameValuePair("key", WEBAPIKEY));
        formparams.add(new BasicNameValuePair("tableid",tableid));
        formparams.add(new BasicNameValuePair("loctype", "2"));
        formparams.add(new BasicNameValuePair("data", data.toString()));
        return formparams;
    } 
     
public void doPost() {
        try {
            HttpClient httpclient = new DefaultHttpClient();
            HttpPost httppost = new HttpPost(INSERT);
            httppost.addHeader("Content-Type", "application/x-www-form-urlencoded");
            httppost.setEntity(new UrlEncodedFormEntity(insertData("白羊沟自然风景区","北京市昌平区流村镇北禾路白羊沟自然风景区"), "UTF-8"));
            HttpResponse response = httpclient.execute(httppost);
            int code = response.getStatusLine().getStatusCode();
            if (code == 200) {
                String recieve = EntityUtils.toString(response.getEntity());
                System.out.println(recieve);
            }
        } catch (UnsupportedEncodingException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        } catch (ClientProtocolException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        } catch (IOException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }
    }

更新数据：

把上面的红色部分改一改就行。

//1.INSERT -> UPDATE 红字部分 
//2.添加updateData方法
public List<NameValuePair> updateData(String tableId, String[] datas) {
        try {
            JSONObject data = new JSONObject();
            for (int i = 0; i < LOCATION_FIELD.length; i++)
                    data.put(LOCATION_FIELD[i], datas[i]);
 　　　　　　return toNameValuePairData(data.toString(), tableId);
        } catch (JSONException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }
        return null;
    }

//3.更新红色部分方法调用
httppost.setEntity(new UrlEncodedFormEntity(updateData("1","白羊沟自然风景区","北京市昌平区流村镇北禾路白羊沟自然风景区"), "UTF-8"));

删除数据：

//1.INSERT -> DELETE 红字部分 
//2.添加deleteData方法
public List<NameValuePair> deleteData(String tableId, String id) {
        List<NameValuePair>  formparams = new ArrayList<NameValuePair>();
        formparams.add(new BasicNameValuePair("key", WEBAPIKEY));
        formparams.add(new BasicNameValuePair("tableid",tableId));
        formparams.add(new BasicNameValuePair("ids", id));
        return formparams;
    }

//3.更新红色部分方法调用
httppost.setEntity(new UrlEncodedFormEntity(deleteData("1"), "UTF-8"));