从字符串中删除\的所有匹配项
从字符串中删除\的所有匹配项
提问于 2012-12-19 03:17:31
我正在尝试使用JSON从服务器获取对象数组。
服务器向我发送以下字符串。
"[{\"DealComment\":null,\"DealVotes\":[],\"DealId\":1,\"CompanyId\":1,\"StartDate\":\"2012-12-13T00:00:00\",\"EndDate\":\"2012-12-16T00:00:00\",\"CouponCode\":\"Test Coupon 1\",\"Description\":\"Test Deal Description 1\",\"VoteUp\":null,\"VoteDown\":null,\"ViewCount\":null,\"Title\":\"Test Deal 1\"},{\"DealComment\":null,\"DealVotes\":[],\"DealId\":2,\"CompanyId\":1,\"StartDate\":\"2012-12-16T00:00:00\",\"EndDate\":\"2012-12-17T00:00:00\",\"CouponCode\":\"Test Coupon 2\",\"Description\":\"Test Description 2\",\"VoteUp\":null,\"VoteDown\":null,\"ViewCount\":null,\"Title\":\"Test Deal 2\"},{\"DealComment\":null,\"DealVotes\":[],\"DealId\":3,\"CompanyId\":1,\"StartDate\":\"2012-12-14T00:00:00\",\"EndDate\":\"2012-12-15T00:00:00\",\"CouponCode\":\"Test Code 3\",\"Description\":\"Test Description 3\",\"VoteUp\":null,\"VoteDown\":null,\"ViewCount\":null,\"Title\":\"Test Deal 3\"},{\"DealComment\":null,\"DealVotes\":[],\"DealId\":4,\"CompanyId\":1,\"StartDate\":\"2012-12-12T00:00:00\",\"EndDate\":\"2012-12-13T00:00:00\",\"CouponCode\":\"Test Coupon 4\",\"Description\":\"Test Description 4\",\"VoteUp\":null,\"VoteDown\":null,\"ViewCount\":null,\"Title\":\"Test Deal 4\"},{\"DealComment\":null,\"DealVotes\":[],\"DealId\":5,\"CompanyId\":2,\"StartDate\":\"2012-12-12T00:00:00\",\"EndDate\":\"2012-12-14T00:00:00\",\"CouponCode\":\"AwD\",\"Description\":\"Very awesome deal!\",\"VoteUp\":null,\"VoteDown\":null,\"ViewCount\":null,\"Title\":\"Awesome Deal 1\"}]"现在，如果仔细查看该字符串，您会注意到它包含一个\"，而不是每个".当前无法将该字符串格式化为JSONArray。因此，我需要将每次出现的\"替换为"，如果\不是转义序列，这将是一项非常简单的任务。
我尝试使用以下代码。
String jsonFormattedString = jsonStr.replaceAll("\\", "");但它给了我以下例外。
12-19 00:35:59.575: W/System.err(444): java.util.regex.PatternSyntaxException: Syntax error U_REGEX_BAD_ESCAPE_SEQUENCE near index 1:
12-19 00:35:59.575: W/System.err(444): \
12-19 00:35:59.575: W/System.err(444): ^我的整个代码，以防它有任何用处：
public void getAllDealsFromServerJson()
{
String apiUrl = "http://passme.azurewebsites.net/api/TestApi/";
HttpClient client = new DefaultHttpClient();
HttpConnectionParams.setConnectionTimeout(client.getParams(), 10000); //Timeout Limit
HttpResponse response;
JSONObject json = new JSONObject();
try{
HttpPost httpPost = new HttpPost(apiUrl);
json.put("requestType", "getalldeals" );
StringEntity se = new StringEntity( json.toString());
se.setContentType(new BasicHeader(HTTP.CONTENT_TYPE, "application/json"));
httpPost.setEntity(se);
response = client.execute(httpPost);
Log.d("Http Response:", response.toString());
jsonResponse = response.toString();
BufferedReader reader = new BufferedReader(new InputStreamReader(response.getEntity().getContent(), "UTF-8"));
String jsonStr = reader.readLine();
Log.d("String Response", jsonStr);
String jsonFormattedString = jsonStr.replaceAll("\\", ""); // gives error
Log.d("Formatted String", jsonFormattedString);
//JSONTokener tokener = new JSONTokener(jsonFormattedString);
/*JSONObject finalResult = new JSONObject(tokener);
Log.d("JSON Response", "" + finalResult.optString("Title"));*/
JSONArray resultArray = new JSONArray(jsonFormattedString);
Log.d("JSON Array Result Length", "" + resultArray.length());
Log.d("JSON Array Result ", "" + resultArray.getJSONObject(0).optInt("DealId"));
}
catch (Exception e)
{
e.printStackTrace();
}
}页面原文内容由Stack Overflow提供。腾讯云小微IT领域专用引擎提供翻译支持
原文链接：
https://stackoverflow.com/questions/13939925
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