Java 提交简单表单时出错
提交简单表单时出错：Java 提交简单表单时出错,java,servlets,Java,Servlets,提交简单表单时出错： package mvc.controller; import java.io.IOException; import javax.servlet.RequestDispatcher; import javax.servlet.ServletException; import javax.servlet.annotation.WebServlet; import javax.servlet.http.HttpServlet; import javax.servlet.ht
package mvc.controller;
import java.io.IOException;
import javax.servlet.RequestDispatcher;
import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import mvc.bean.PollBean;
import mvc.dao.PollDAO;
@WebServlet("/pollControll")
public class PollController extends HttpServlet {
private static final long serialVersionUID = 1L;
private PollDAO pd;
public PollController() {
pd = new PollDAO();
}
protected void doGet(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
String action = request.getParameter("action");
if (action.equalsIgnoreCase("SelectALL")) {
request.setAttribute("polls", pd.SelectAll());
}
response.getWriter().append("Served at: ").append(request.getContextPath());
}
protected void doPost(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
String action = request.getParameter("action");
if (action.equalsIgnoreCase(("insert"))) {
PollDAO pp = new PollDAO();
PollBean p = new PollBean();
int note = Integer.parseInt(request.getParameter("note"));
String email = request.getParameter("email");
p.setNote(note);
p.setEmail(email);
pp.insert(p);
RequestDispatcher direct = request.getRequestDispatcher("/home.jsp");
direct.forward(request, response);
} else if (action.equalsIgnoreCase("ResetALL")) {
PollBean p = new PollBean();
pd.ResetALL(p);
} else if (action.equalsIgnoreCase("Activated")) {
PollBean p = new PollBean();
pd.Activated(p);
RequestDispatcher direct = request.getRequestDispatcher("/PollAdmin.jsp");
direct.forward(request, response);
} else if (action.equalsIgnoreCase("Deactivated")) {
PollBean p = new PollBean();
pd.Deactivated(p);
RequestDispatcher direct = request.getRequestDispatcher("/PollAdmin.jsp");
direct.forward(request, response);
}
doGet(request, response);
}
}
Servlet.service() for servlet [mvc.controller.PollController] in context with path [/Enquete_eduCAPES] threw exception [Servlet execution threw an exception] with root cause
java.lang.ClassNotFoundException: java.time.temporal.TemporalField
at org.apache.catalina.loader.WebappClassLoaderBase.loadClass(WebappClassLoaderBase.java:1858)
at org.apache.catalina.loader.WebappClassLoaderBase.loadClass(WebappClassLoaderBase.java:1701)
at org.postgresql.jdbc.PgConnection.<init>(PgConnection.java:320)
at org.postgresql.Driver.makeConnection(Driver.java:406)
at org.postgresql.Driver.connect(Driver.java:274)
at java.sql.DriverManager.getConnection(Unknown Source)
at java.sql.DriverManager.getConnection(Unknown Source)
at mvc.util.ConexaoDAO.getConnection(ConexaoDAO.java:29)
at mvc.dao.PollDAO.insert(PollDAO.java:40)
at mvc.controller.PollController.doPost(PollController.java:60)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:650)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:731)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:303)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)
at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:220)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:122)
at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:505)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:169)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:103)
at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:956)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:116)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:436)
at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1078)
at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:625)
at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:318)
at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
at java.lang.Thread.run(Unknown Source)
Servlet.service（）引发了带有根本原因的异常[Servlet执行引发了异常]
java.lang.ClassNotFoundException:java.time.temporal.TemporalField
位于org.apache.catalina.loader.WebappClassLoaderBase.loadClass（WebappClassLoaderBase.java:1858）
位于org.apache.catalina.loader.WebappClassLoaderBase.loadClass（WebappClassLoaderBase.java:1701）
位于org.postgresql.jdbc.PgConnection.（PgConnection.java:320）
位于org.postgresql.Driver.makeConnection（Driver.java:406）
位于org.postgresql.Driver.connect（Driver.java:274）
位于java.sql.DriverManager.getConnection（未知源）
位于java.sql.DriverManager.getConnection（未知源）
位于mvc.util.ConexaoDAO.getConnection（ConexaoDAO.java:29）
位于mvc.dao.PollDAO.insert（PollDAO.java:40）
位于mvc.controller.PollController.doPost（PollController.java:60）
位于javax.servlet.http.HttpServlet.service（HttpServlet.java:650）
位于javax.servlet.http.HttpServlet.service（HttpServlet.java:731）
位于org.apache.catalina.core.ApplicationFilterChain.internalDoFilter（ApplicationFilterChain.java:303）
位于org.apache.catalina.core.ApplicationFilterChain.doFilter（ApplicationFilterChain.java:208）
位于org.apache.tomcat.websocket.server.WsFilter.doFilter（WsFilter.java:52）
位于org.apache.catalina.core.ApplicationFilterChain.internalDoFilter（ApplicationFilterChain.java:241）
位于org.apache.catalina.core.ApplicationFilterChain.doFilter（ApplicationFilterChain.java:208）
位于org.apache.catalina.core.StandardWrapperValve.invoke（StandardWrapperValve.java:220）
位于org.apache.catalina.core.StandardContextValve.invoke（StandardContextValve.java:122）
位于org.apache.catalina.authenticator.AuthenticatorBase.invoke（AuthenticatorBase.java:505）
位于org.apache.catalina.core.StandardHostValve.invoke（StandardHostValve.java:169）
位于org.apache.catalina.valves.ErrorReportValve.invoke（ErrorReportValve.java:103）
位于org.apache.catalina.valves.AccessLogValve.invoke（AccessLogValve.java:956）
位于org.apache.catalina.core.StandardEngineValve.invoke（StandardEngineValve.java:116）
位于org.apache.catalina.connector.CoyoteAdapter.service（CoyoteAdapter.java:436）
位于org.apache.coyote.http11.AbstractHttp11Processor.process（AbstractHttp11Processor.java:1078）
位于org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process（AbstractProtocol.java:625）
位于org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run（JIoEndpoint.java:318）
位于java.util.concurrent.ThreadPoolExecutor.runWorker（未知源）
位于java.util.concurrent.ThreadPoolExecutor$Worker.run（未知源）
位于org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run（TaskThread.java:61）
位于java.lang.Thread.run（未知源）
因为根据
time/temporal/TemporalField