/** 解析问题网页，将其保存到数据库，填写fragment表（过滤前的） */
public void fragment(String keyword, int pagelength) throws Exception {
try {
// 解析数据，数据加到数据库里面
String catalog = KeywordCatalogDesign.GetKeywordCatalog(keyword);
// 得到问题网页的链接
String[] QuestionUrls = DataCollection.getQuestionURLs(keyword);
// System.out.println("链接数目为：" + pagelength);
// 解析每个问题网页的问题和回答
for (int j = 0; j < pagelength; j++) {
String path = catalog + keyword + j + ".html";
File file = new File(path);
if (!file.exists()) {
System.out.println(path + " 不存在，请重新爬取数据...");
} else {
System.out.println("\n开始解析： " + path);
Document doc = JsoupParse.parsePathText(path);
// 得到问题的各字段信息，没有作者ID，爬取时间为当前解析数据的时间
String keywordstore = keyword.replaceAll("\\+", "\\_");
// System.out.println("转义以后：" + keywordstore);
String QuestionId = keywordstore + j + ""; // 得到问题ID
String SourceType = "Quora"; // 得到问题来源
String URL = QuestionUrls[j]; // 得到碎片链接URL
// System.out.println("url为：" + URL);
String QuestionContent =
FeatureExtraction.questionContent(doc)
+ "\n"
+ "Expanded information："
+ FeatureExtraction.questionExpandInfo(doc); // 得到碎片内容
SimpleDateFormat df = new SimpleDateFormat("yyyy/MM/dd HH:mm:ss"); // 设置日期格式
String CrawlerTime = df.format(new Date()); // new
// Date()为获取当前系统时间
System.out.println("CrawlerTime1 is ：" + CrawlerTime);
String AuthorID = "0";
String media_type = "text"; // 数据是文本类型的text
String evaluation = "1"; // 数据是否可用，默认都是1
// 创建sql语句
sql = "replace into fragment values (?, ?, ?, ?, ?, ?, ?, ?)";
// 创建object数组
Object[] questionobject =
new Object[] {
QuestionId,
SourceType,
URL,
QuestionContent,
CrawlerTime,
AuthorID,
media_type,
evaluation
};
// 执行sql语句
mysqlCon.doSql(sql, questionobject);
// 获取影响行数
// i = mysqlCon.getUpdateCount();
// // 判断是否插入成功
// if (i != -1) {
// System.out.println("数据插入成功！");
// } else {
// System.out.println("数据插入失败！");
// }
// 关闭链接
mysqlCon.getClose();
// 得到答案数据
int realanswernumber = FeatureExtraction.countRealAnswerNumber(doc);
for (int m = 0; m < realanswernumber; m++) {
// 得到答案的各字段信息，没有作者ID，爬取时间为当前解析数据的时间
String AnswerId = QuestionId + "_" + m; // 得到答案ID
String AnswerContent = FeatureExtraction.answerContent(doc, m);
; // 得到碎片内容
// 创建object数组
Object[] answerobject =
new Object[] {
AnswerId,
SourceType,
URL,
AnswerContent,
CrawlerTime,
AuthorID,
media_type,
evaluation
};
mysqlCon.doSql(sql, answerobject);
// i = mysqlCon.getUpdateCount();
// if (i != -1) {
// System.out.println("数据插入成功！");
// } else {
// System.out.println("数据插入失败！");
// }
// 关闭链接
mysqlCon.getClose();
}
}
}
} catch (Exception ex) {
System.out.println("Error : " + ex.toString());
}
}
/**
* 填写fragment_term表（填写fragment和以前的主题词的关系表） 读取term表
*
* @throws Exception
*/
public void fragmentTerm(String keyword, int pagelength) throws Exception {
Connection conn;
PreparedStatement ps;
Class.forName("com.mysql.jdbc.Driver").newInstance();
// 建立到MySQL的连接（注意数据库IP）
conn =
DriverManager.getConnection(
"jdbc:mysql://localhost:3306/knowledgeforest", "root", "199306");
// conn = DriverManager.getConnection("jdbc:mysql://202.117.16.39:3306/knowledgeforest",
// "e-learning","knowledgeforest");
// conn = DriverManager.getConnection("jdbc:mysql://202.117.16.39:3306/knowledgeforestlocal",
// "e-learning","knowledgeforest");
// conn = DriverManager.getConnection("jdbc:mysql://202.117.54.43:3306/knowledgeforest",
// "e-learning","knowledgeforest");
// 查询term表，得到关键词表
ps = conn.prepareStatement("select * from term");
ResultSet rs = ps.executeQuery();
int length = 0;
while (rs.next()) {
length++; // 得到term总数
}
System.out.println("共有term数目为：" + length);
// 得到term表的主题词名和对应id
String[] topic = new String[length];
int[] term = new int[length];
ResultSet rs1 = ps.executeQuery();
int index = 0;
while (rs1.next()) {
int term_id = rs1.getInt(1);
String domterm_name = rs1.getString(2);
topic[index] = domterm_name;
term[index] = term_id;
index++;
}
// 比较关键词和主题词，判断关键词是否在term表中是否存在
String keywordchange = keyword.replaceAll("\\+", "\\_");
for (int i = 0; i < topic.length; i++) {
if (keywordchange.equals(topic[i])) {
String catalog = KeywordCatalogDesign.GetKeywordCatalog(keyword);
for (int j = 0; j < pagelength; j++) {
String path = catalog + keyword + j + ".html";
File file = new File(path);
Document doc = JsoupParse.parsePathText(path);
if (!file.exists()) {
System.out.println(path + " 不存在，请重新爬取数据...");
} else {
String QuestionId = keywordchange + j + ""; // 得到问题ID
int term_id = term[i];
// System.out.println(QuestionId + " " + term_id);
// 创建sql语句
sql = "replace into fragment_term values (?, ?)";
Object[] answerobject = new Object[] {QuestionId, term_id};
mysqlCon.doSql(sql, answerobject);
// i = mysqlCon.getUpdateCount();
// if (i != -1) {
// System.out.println("数据插入成功！");
// } else {
// System.out.println("数据插入失败！");
// }
// 关闭链接
mysqlCon.getClose();
}
int realanswernumber = FeatureExtraction.countRealAnswerNumber(doc);
for (int m = 0; m < realanswernumber; m++) {
String AnswerId = keywordchange + j + "_" + m; // 得到答案ID
int term_id = term[i];
// System.out.println(AnswerId + " " + term_id);
// 创建sql语句
sql = "replace into fragment_term values (?, ?)";
Object[] answerobject = new Object[] {AnswerId, term_id};
mysqlCon.doSql(sql, answerobject);
// i = mysqlCon.getUpdateCount();
// if (i != -1) {
// System.out.println("数据插入成功！");
// } else {
// System.out.println("数据插入失败！");
// }
// 关闭链接
mysqlCon.getClose();
}
}
}
}
}