我在这里不知所措,有人能看出这段代码有什么问题吗?我在这个驱动程序中使用sqlite: https://bitbucket.org/xerial/sqlite-jdbc/downloads
编辑:修复了我的初始错误,但有一个类似的错误
public void insertTweets(final List<WatchedTweet> tweets) {
try {
final PreparedStatement stmt = connection.prepareStatement(
"insert into tweets(tweet_id, user_id, campaign_id, retweet_count, date) values(?,?,?,?,?)"
);
for(WatchedTweet tweet : tweets) {
stmt.setLong(1, tweet.getID());
stmt.setLong(2, tweet.getParent().getTwitterID());
stmt.setInt(3, tweet.getParent().getCampaignID());
stmt.setInt(4, tweet.getRetweetCount());
stmt.setLong(5, tweet.getAdded().getTime());
stmt.addBatch();
stmt.clearParameters();
}
stmt.executeBatch();
stmt.close();
} catch (SQLException sqe) {
sqe.printStackTrace();
}
}
我在这一行得到例外:
stmt.setLong(1, tweet.getID());
例外:
Exception in thread "main" java.lang.ArrayIndexOutOfBoundsException: 5
at org.sqlite.core.CorePreparedStatement.batch(CorePreparedStatement.java:110)
at org.sqlite.jdbc3.JDBC3PreparedStatement.setLong(JDBC3PreparedStatement.java:298)
at tweetserver.server.db.TwitterDB.insertTweets(TwitterDB.java:75)
at tweetserver.server.rest.TwitterBot.updateTimelineUntilDate(TwitterBot.java:138)
at tweetserver.server.rest.TwitterBot.process(TwitterBot.java:49)
at tweetserver.server.rest.TwitterBot.<init>(TwitterBot.java:44)
at tweetserver.server.Application.bootstrap(Application.java:25)
at tweetserver.server.Application.main(Application.java:20)
这是我创建表格的方式
"create table if not exists tweets (" +
"id integer PRIMARY KEY AUTOINCREMENT," +
"tweet_id long NOT NULL," +
"user_id long NOT NULL," +
"campaign_id int NOT NULL, " +
"retweet_count int NOT NULL, " +
"date long NOT NULL)"`
答案 0 :(得分:2)
根据http://docs.oracle.com/javase/7/docs/api/java/sql/PreparedStatement.html#setLong(int,%20long)
的文档parameterIndex - the first parameter is 1, the second is 2,