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An error will occur even if you try to register the value that was output to the confirmation screen in the DB.
Error details
java.lang.NumberFormatException: For input string: ""
at java.lang.NumberFormatException.forInputString (NumberFormatException.java:65) ~ [na: 1.8.0_231]
at java.lang.Integer.parseInt (Integer.java:592) ~ [na: 1.8.0_231]
at java.lang.Integer.parseInt (Integer.java:615) ~ [na: 1.8.0_231]
at com.example.web.db.MogipuroController.teacherNissiend (MogipuroController.java:165) ~ [classes /: na]
at sun.reflect.NativeMethodAccessorImpl.invoke0 (Native Method) ~ [na: 1.8.0_231]
at sun.reflect.NativeMethodAccessorImpl.invoke (NativeMethodAccessorImpl.java:62) ~ [na: 1.8.0_231]
at sun.reflect.DelegatingMethodAccessorImpl.invoke (DelegatingMethodAccessorImpl.java:43) ~ [na: 1.8.0_231]
at java.lang.reflect.Method.invoke (Method.java:498) ~ [na: 1.8.0_231]
at org.springframework.web.method.support.InvocableHandlerMethod.doInvoke (InvocableHandlerMethod.java:190) ~ [spring-web-5.2.1.RELEASE.jar: 5.2.1.RELEASE]
at org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest (InvocableHandlerMethod.java:138) ~ [spring-web-5.2.1.RELEASE.jar: 5.2.1.RELEASE]
at org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle (ServletInvocableHandlerMethod.java:106) ~ [spring-webmvc-5.2.1.RELEASE.jar: 5.2.1.RELEASE]
at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandlerMethod (RequestMappingHandlerAdapter.java:888) ~ [spring-webmvc-5.2.1.RELEASE.jar: 5.2.1.RELEASE]
at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal (RequestMappingHandlerAdapter.java:793) ~ [spring-webmvc-5.2.1.RELEASE.jar: 5.2.1.RELEASE]
at org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle (AbstractHandlerMethodAdapter.java:87) ~ [spring-webmvc-5.2.1.RELEASE.jar: 5.2.1.RELEASE]
at org.springframework.web.servlet.DispatcherServlet.doDispatch (DispatcherServlet.java:1040) ~ [spring-webmvc-5.2.1.RELEASE.jar: 5.2.1.RELEASE]
at org.springframework.web.servlet.DispatcherServlet.doService (DispatcherServlet.java:943) ~ [spring-webmvc-5.2.1.RELEASE.jar: 5.2.1.RELEASE]
at org.springframework.web.servlet.FrameworkServlet.processRequest (FrameworkServlet.java:1006) ~ [spring-webmvc-5.2.1.RELEASE.jar: 5.2.1.RELEASE]
at org.springframework.web.servlet.FrameworkServlet.doGet (FrameworkServlet.java:898) ~ [spring-webmvc-5.2.1.RELEASE.jar: 5.2.1.RELEASE]
at javax.servlet.http.HttpServlet.service (HttpServlet.java:634) ~ [tomcat-embed-core-9.0.27.jar: 9.0.27]
at org.springframework.web.servlet.FrameworkServlet.service (FrameworkServlet.java:883) ~ [spring-webmvc-5.2.1.RELEASE.jar: 5.2.1.RELEASE]
at javax.servlet.http.HttpServlet.service (HttpServlet.java:741) ~ [tomcat-embed-core-9.0.27.jar: 9.0.27]
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter (ApplicationFilterChain.java:231) ~ [tomcat-embed-core-9.0.27.jar: 9.0.27]
at org.apache.catalina.core.ApplicationFilterChain.doFilter (ApplicationFilterChain.java:166) ~ [tomcat-embed-core-9.0.27.jar: 9.0.27]
at org.apache.tomcat.websocket.server.WsFilter.doFilter (WsFilter.java:53) ~ [tomcat-embed-websocket-9.0.27.jar: 9.0.27]
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter (ApplicationFilterChain.java:193) ~ [tomcat-embed-core-9.0.27.jar: 9.0.27]
at org.apache.catalina.core.ApplicationFilterChain.doFilter (ApplicationFilterChain.java:166) ~ [tomcat-embed-core-9.0.27.jar: 9.0.27]
at
This
<! DOCTYPE html>
<html xmlns: th = "http://www.thymeleaf.org">
<head>
<meta charset = "UTF-8" />
<title>Timely confirmation</title>
</head>
<body>
Registration confirmation
<p>* Check the input contents.</p>
<form th: action = "@ {/ insert-ensyu1-end}" th: object = "${insertMogipuroForm}" method = "post">
<table>
<tr>
<td>Children ID</td>
<td>
<span th: text = "${insertMogipuroForm.childrenid}"></span>
</td>
</tr>
<tr>
<td>Kindergarten Name</td>
<td>
<span th: text = "${insertMogipuroForm.name}"></span>
</td>
</tr>
<tr>
<td>Date filled</td>
<td>
<span th: text = "${insertMogipuroForm.year}"></span>year
</td>
<td>
<span th: text = "${insertMogipuroForm.month}"></span>month
</td>
<td><span th: text = "${insertMogipuroForm.day}"></span>day
</td>
</tr>
<tr>
<td>Communications</td>
<td>
<span th: text = "${insertMogipuroForm.communication}"></span>
</td>
</tr>
</table>
<input type = "submit" name = "timely_btn" value = "register" />
<input type = "submit" name = "back_btn" value = "back" />
</form>
</html>
package com.example.domain;
import java.util.List;
public class MogipuroInfo {
private String timelyid;
private String id;
private String name;
private String classs;
private String sleepstarttime;
private String sleependtime;
private String mood;
private String poop;
private String meal;
private String phase;
// Search list
private String searchid;
public String serchtimelyid;
private String searchstartyear;
private String searchstartmonth;private String searchstartday;
private String searchendyear;
private String searchendmonth;
private String searchendday;
// Parent's
private String pickuptime;
private String communication;
private String daybookwriter;
private String writedate;
private String childrenid;
private String childrenname;
private String timelywriter;
private String year;
private String month;
private String day;
private String startmin;
private String endmin;
private List<String>yearList;
private List<String>monthList;
private List<String>dayList;
private List<String>startTimeList;
private List<String>startMinList;
private List<String>endTimeList;
private List<String>endMinList;
private String startwritedate;
private String endwritedate;
private String writedatetime;
private String communicaton;
private String starttime;
private String endtime;
private String theDate;
private String startTime1;private String endTime1;
public String getTheDate () {
return theDate;
}
}
// Redirect from diary registration confirmation to completion screen DB registration
@RequestMapping (value = "/ teacher-nissi-end", params = "nissi_btn")
public String teacherNissiend (@ModelAttribute ("insertMogipuroForm") InsertMogipuroForm form) {
// Instantiate the domain class used for data registration
MogipuroInfo inputNissiInfo = new MogipuroInfo ();
// Copy form class value to domain class
BeanUtils.copyProperties (form, inputNissiInfo);
// convert for registration and registration
int year = Integer.parseInt (form.getYear ());
int month = Integer.parseInt (form.getMonth ());
int day = Integer.parseInt (form.getDay ());
String sleepstarttime1 = form.getSleepstarttime1 ();
String sleependtime1 = form.getSleependtime1 ();
String sleepstarttime2 = form.getSleepstarttime2 ();
String sleependtime2 = form.getSleependtime2 ();
String theDate = String.format ("% 04d% 02d% 02d", year, month, day);
MogipuroInfo.setTheDate (theDate);
MogipuroInfo.setStartTime1 (sleepstarttime1 + ":" + sleependtime1);
MogipuroInfo.setEndTime1 (sleepstarttime2 + ":" + sleependtime2);
System.out.print (form.getYear ());
// Call service process to register data
service.inputNissiInfo (inputNissiInfo);
return "redirect:/teacher-nissi-end? finish";
-
Answer # 1
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, an exception is thrown when trying to convert an empty character string to int on line 165 of the Controller class. Probably
In either of the cases, the value is obtained from the form but the value is not entered.
I imagine that you have seen the code of the HTML template, but if you register from the registration confirmation screen, you need a mechanism to take over what you entered on the previous screen.
In other words, the registration information is not sent from the screen.
The easiest way is to use a session that temporarily holds the input information and acquire the value from the session when registering data.