Question

从SQLite检索JSON数据时，转义字符＆＃34; \＆＃34;正在数组中出现。最初我在Web-view javascript中创建了JSON数组，然后发送到Android java以保存在DB中。

下面是我发送给Java的JSON字符串。

adtMf = [{"companyId":"12004","employeeId":"11345","employeeName":"jaseem","employeeDepartment":"SalesExecutive","employeePosition":"Staff","itemMeasurementNotes":"Notes here","itemMeasurementOwner":"someone","Items":"Shirt?ShirtPrice:1.1!ShirtQty:1.1!ShirtLength:2.12!ShirtShoulder:1.12!ShirtSleeveL:3.12!ShirtSleeveW:5.14!ShirtSleeveCuff:2.12!ShirtChest:3.12!ShirtBelly:4.12!ShirtSeat:5.12!ShirtCollar:5.12!ShirtSlideL1:4.1!ShirtSlideL2:4.12!ShirtSlideL3:2.4!"}]
android.addMeasurement(JSON.stringify(adtMf));

下面是我的android代码，它获取数据并保存到DB

 @JavascriptInterface
public void updateMeasurement(String response) {
    db.addADTMeasurement(response.toString());
}

public void addADTMeasurement(String ADTMeasurment) {
    SQLiteDatabase db = this.getWritableDatabase();
    ContentValues values = new ContentValues();
    values.put(KEY_ADTMEASUREMENT, ADTMeasurment); 
    // Inserting Row
    long id = db.insert(TABLE_MYMEASUREMENT, null, values);
    Log.d(TAG, "New Measurement into sqlite: " + id);
}

从SQLite检索数据后，JSON数组正在使用＆＃34; \＆＃34;。我该如何删除？虽然添加到SQLite并不是我的代码添加＆＃34; \＆＃34; ？。由于某些奇怪的原因，Android设备管理器文件资源管理器无法正常工作，因此我无法确认数据是如何存储在数据库中的。

以下是用于从DB

中恢复数据的android代码

 public Cursor fetchADTMeasurement() {
    SQLiteDatabase db = this.getReadableDatabase();
    Cursor mCursor = db.query(TABLE_MYMEASUREMENT, new String[] {KEY_ADTMEASUREMENT},
            null, null, null, null, null);
    if (mCursor != null) {
        mCursor.moveToFirst();
    }
    return mCursor;
}

 Cursor mycursor2 = db.fetchADTMeasurement();
 JSONArray resultSet3 = new JSONArray();
 mycursor2.moveToFirst();
 String id = mycursor2.getString( mycursor2.getColumnIndex("ADTMeasurement") );
 while (mycursor2.isAfterLast() == false) {
    int totalColumn = mycursor2.getColumnCount();
    JSONObject rowObject = new JSONObject();
    for (int i = 0; i < totalColumn; i++) {
        if (mycursor2.getColumnName(i) != null) {
            try {
                resultSet3.put(mycursor2.getString(i));
                } catch (Exception e) { }
          }
      }
      mycursor2.moveToNext();
     }
     mycursor2.close();
    super.onPageFinished(view, url);
    if (url.equals("file:///android_asset/myMeasurments_a.html")) {
                   myWebView.loadUrl("javascript:start("+resultSet3+");");
                }

当我把结果设置3放在javascript中时。我正在接受＆＃34; \＆＃34;所有字符串旁边。

function start(d){
    adtMf = d.slice();
    console.log(JSON.stringify(adtMf));
}

I/chromium: [INFO:CONSOLE(42)] "["[{\"companyId\":12004,\"employeeId\":\"11345\",\"employeeName\":\"jaseem\",\"employeeDepartment\":\"SalesExecutive\",\"employeePosition\":\"Staff\",\"itemMeasurementNotes\":\"Notes here\",\"itemMeasurementOwner\":\"someone\",\"Items\":\"Shirt?ShirtPrice:1.1!ShirtQty:1.1!ShirtLength:2.12!ShirtShoulder:1.12!ShirtSleeveL:3.12!ShirtSleeveW:5.14!ShirtSleeveCuff:2.12!ShirtChest:3.12!ShirtBelly:4.12!ShirtSeat:5.12!ShirtCollar:5.12!ShirtSlideL1:4.1!ShirtSlideL2:4.12!ShirtSlideL3:2.4!\"}]"]"

Answer 1

如果你想从json中删除反斜杠，试试这个：

   String newJsonString = jsonString.replaceAll("\\\\", "");

Answer 2

以下代码为我工作

Cursor mycursor2 = db.fetchADTMeasurement();
mycursor2.moveToFirst();
String resultSet3 = mycursor2.getString(0);
mycursor2.close();

super.onPageFinished(view, url);
if (url.equals("file:///android_asset/myMeasurments_a.html")) {
    myWebView.loadUrl("javascript:start("+resultSet3+");");
}

Answer 3

我已尝试使用以下代码，希望它可以帮助您

String jsonString="[{\\\"companyId\\\":12004,\\\"employeeId\\\":\\\"11345\\\",\\\"employeeName\\\":\\\"jaseem\\\",\\\"employeeDepartment\\\":\\\"SalesExecutive\\\",\\\"employeePosition\\\":\\\"Staff\\\",\\\"itemMeasurementNotes\\\":\\\"Notes here\\\",\\\"itemMeasurementOwner\\\":\\\"someone\\\",\\\"Items\\\":\\\"Shirt?ShirtPrice:1.1!ShirtQty:1.1!ShirtLength:2.12!ShirtShoulder:1.12!ShirtSleeveL:3.12!ShirtSleeveW:5.14!ShirtSleeveCuff:2.12!ShirtChest:3.12!ShirtBelly:4.12!ShirtSeat:5.12!ShirtCollar:5.12!ShirtSlideL1:4.1!ShirtSlideL2:4.12!ShirtSlideL3:2.4!\\\"}]";
Log.e("jsonString=",jsonString);
String newJsonString = jsonString.replaceAll("\\\\", "");
Log.e("newJsonString=",newJsonString);

控制台日志：jsonString是

jsonString=: [{\"companyId\":12004,\"employeeId\":\"11345\",\"employeeName\":\"jaseem\",\"employeeDepartment\":\"SalesExecutive\",\"employeePosition\":\"Staff\",\"itemMeasurementNotes\":\"Notes here\",\"itemMeasurementOwner\":\"someone\",\"Items\":\"Shirt?ShirtPrice:1.1!ShirtQty:1.1!ShirtLength:2.12!ShirtShoulder:1.12!ShirtSleeveL:3.12!ShirtSleeveW:5.14!ShirtSleeveCuff:2.12!ShirtChest:3.12!ShirtBelly:4.12!ShirtSeat:5.12!ShirtCollar:5.12!ShirtSlideL1:4.1!ShirtSlideL2:4.12!ShirtSlideL3:2.4!\"}]

控制台日志：newJsonString是

newJsonString=: [{"companyId":12004,"employeeId":"11345","employeeName":"jaseem","employeeDepartment":"SalesExecutive","employeePosition":"Staff","itemMeasurementNotes":"Notes here","itemMeasurementOwner":"someone","Items":"Shirt?ShirtPrice:1.1!ShirtQty:1.1!ShirtLength:2.12!ShirtShoulder:1.12!ShirtSleeveL:3.12!ShirtSleeveW:5.14!ShirtSleeveCuff:2.12!ShirtChest:3.12!ShirtBelly:4.12!ShirtSeat:5.12!ShirtCollar:5.12!ShirtSlideL1:4.1!ShirtSlideL2:4.12!ShirtSlideL3:2.4!"}]

从SQLite检索JSON数据时，反斜杠显示在数组中

3 个答案: