一、xxxxxx获取指定任务爬取的所有url的接口

接口名称：xxxxxx获取指定任务爬取的所有url的接口

访问链接：

http://IP:PORT/crwalTask/findUrlExceptionById?ctId=ctIdVal&time=timeVal&limit=limitVal

传入参数类型：String,int

参数内容:

返回类型：JSONArray

返回内容：

调用方法Demo

1 public static void main(String[] args) throws Exception {

2 //爬虫访问接口地址

3 String req_url = "http://192.168.1.105:8080/crwalTask/findUrlExceptionById?ctId=ctIdVal&time=timeVal&limit=limitVal";

4 JSONArray jsonArray = httpRequest(req_url,"ba716af7-105c-481b-bf28-2e9231529947",SelectUtil.time,SelectUtil.number);//200

5 System.out.println(jsonArray);

6 }

7

8 public class SelectUtil {

9 public static final String time = "2018-03-05".replaceAll(" ", "=");//按时间筛选 格式"yyyy-mm-dd"或"yyyy-mm-dd HH:mm:ss"

10 public static final int number = 162;//查询限制数量

11 }

12 /**

13 * 获取指定任务爬取的所有url信息

14 * @param req_url 访问指定任务爬取的url的链接地址

15 * @param ctId 指定的任务Id

16 * @param time 查询时间

17 * @param limit 查询限制的条数

18 * @return

19 */

20 public static JSONArray httpRequest(String req_url,String ctId,String time,int limit) {

21 req_url = req_url.replace("ctIdVal",ctId);

22 req_url = req_url.replace("timeVal",time);

23 req_url = req_url.replace("limitVal",String.valueOf(limit));

24 StringBuffer buffer = new StringBuffer();

25 JSONArray jsonArray = null;

26 try {

27 URL url = new URL(req_url);

28 HttpURLConnection httpUrlConn = (HttpURLConnection) url.openConnection();

29

30 httpUrlConn.setDoOutput(false);

31 httpUrlConn.setDoInput(true);

32 httpUrlConn.setUseCaches(false);

33

34 httpUrlConn.setRequestMethod("POST");

35 httpUrlConn.connect();

36

37 // 将返回的输入流转换成字符串

38 InputStream inputStream = httpUrlConn.getInputStream();

39 InputStreamReader inputStreamReader = new InputStreamReader(inputStream, "utf-8");

40 BufferedReader bufferedReader = new BufferedReader(inputStreamReader);

41

42 String str = null;

43 while ((str = bufferedReader.readLine()) != null) {

44 buffer.append(str);

45 }

46 bufferedReader.close();

47 inputStreamReader.close();

48 // 释放资源

49 inputStream.close();

50 inputStream = null;

51 httpUrlConn.disconnect();

52 if("".equals(buffer.toString())){

53 String exception = "[\"exception\",\"查询的记录数超过240\"]";

54

55 jsonArray = JSONArray.fromObject(exception);

56 }else{

57 jsonArray = JSONArray.fromObject(buffer.toString());

58 }

59 } catch (Exception e) {

60 System.out.println(e.getMessage());

61 }

62

63 return jsonArray;

64 }

View Code

需要的Jar包：

commons-beanutils-1.9.3.jar

commons-collections-3.2.2.jar

commons-lang-2.6.jar

commons-logging-1.2.jar

ezmorph-1.0.6.jar

json-lib-2.4-jdk15.jar

Sql脚本

alter table urlpathmapper add exceptionInfo varchar(2048) comment 'URL运行错误信息'

alter table urlpathmapper add title varchar(256) comment '爬取标题'

alter table crawltaskmanage add checkFile varchar(8) comment '文件是否校验0是1否'

alter table crawltaskmanage add SimHashValue int(8) comment 'SimHash算法重复度比较值'

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