JAVA servlet import 报错
import java.io.IOException;
import java.io.PrintWriter;
import java.util.ArrayList;
import java.util.List;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import com.itcast.manager.BookManager;
import com.itcast.web.entity.Book;
public class ServletBook extends HttpServlet {
public void doGet(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
doPost(request, response);
}
public void doPost(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
String type = request.getParameter("type");
if (type != null && type.trim().equalsIgnoreCase("findById")) {
} else if (type != null && type.trim().equalsIgnoreCase("findAll")) {
} else if (type != null && type.trim().equalsIgnoreCase("deleteById")) {
} else if (type != null && type.trim().equalsIgnoreCase("deleteAll")) {
} else {
List<Book> bs = new ArrayList<Book>();
BookManager bm = BookManager.getInstance();
bs = bm.findAll();
request.getSession().setAttribute("bs", bs);
response.sendRedirect("/day10/listBook.jsp");
}
}
}
很简单的类 居然第8行 import报错
An error occurred at line: 8 in the generated java file
Syntax error on token "import", Identifier expected after this token
Stacktrace:] with root cause
试过把所有注释掉 只写一个重定向也不行 求解..
[解决办法]
你工程里面没有加入servlet-api.jar 所以无法找到servlet这个包
你需要下载或者到tomcat的lib目录下找到这个 jar包，然后加入到你工程的classpath当中
工程名-右键-buildpath-configuration-add jars 或者add external jars 加入到工程应该就没有这个问题了
