Problems with interaction between spring boot and extjs frontend - spring

Question

I set up a project with Spring Boot 2.7 as backend and extjs 7.0.0 GPL as frontend.
I can send requests from extjs store to the backend (via jsonp e.g.), but unfortunately I really don't achieve to send requests from the spring boot backend to the extjs controller, i.e. stores.
I tried some approaches like urlrewrite or the integration of php code in the /webapp folder, but nothing of this was a solution for my problem.
Anyboy could give me some hints in order to solve my problem, please?
Greetings and thanks in advance
UPDATE
Ok, after preparing and facing other issues, I'm back to the above mentioned issue only...
First of all here my project structure in Eclipse
Here the code of Spring Boot application.properties
server.port=8080
spring.application.name=MyBankingApp
server.servlet.context-path=/MyBankingApp
spring.jpa.open-in-view=false
#Database Configrations
spring.datasource.url=jdbc:postgresql://xxx/mybanking
spring.datasource.driver-class-name=org.postgresql.Driver
spring.datasource.username=xxx
spring.datasource.password=xxx
spring.jpa.database-platform = org.hibernate.dialect.PostgreSQLDialect
spring.jpa.generate-ddl=true
spring.jpa.hibernate.ddl-auto = update
#Multipart
spring.servlet.multipart.enabled=true
spring.servlet.multipart.file-size-threshold=2KB
spring.servlet.multipart.max-file-size=200MB
spring.servlet.multipart.max-request-size=215MB
Here Spring Boot Application class with the main method
package com.mybanking;
import org.springframework.boot.ApplicationArguments;
import org.springframework.boot.ApplicationRunner;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.boot.builder.SpringApplicationBuilder;
import org.springframework.boot.web.servlet.FilterRegistrationBean;
import org.springframework.boot.web.servlet.support.SpringBootServletInitializer;
import org.springframework.context.annotation.Bean;
import org.springframework.core.io.ClassPathResource;
import org.springframework.web.servlet.config.annotation.CorsRegistry;
import org.springframework.web.servlet.config.annotation.WebMvcConfigurer;
#SpringBootApplication
public class MyBankingApplication implements ApplicationRunner {
public static void main(String[] args) {
SpringApplication.run(MyBankingApplication.class, args);
}
#Override
public void run(ApplicationArguments arg0) throws Exception {
System.out.println("Hello World from MyBankingApp Runner");
}
}
Here the code of the extjs class of the relevant store
Ext.define('MyBankingApp.store.User', {
extend: 'Ext.data.Store',
xtype: 'userStore',
id:'userStoreID',
requires: [
'MyBankingApp.model.User'
],
autoLoad: false,
model: 'MyBankingApp.model.User',
proxy: {
type: 'jsonp',
url:'http://localhost:8080/MyBankingApp/user',
//scope: this,
callbackKey: 'callback'
},
callback: function(records, operation, success) {
alert(success);
alert(records);
},
scope: this
});
and its corresponding java controller
package com.mybanking.controller;
import java.io.IOException;
import java.util.List;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.bind.annotation.RequestParam;
import com.google.gson.Gson;
import com.mybanking.model.LoginUser;
import com.mybanking.model.User;
import com.mybanking.repository.UserRepository;
import com.mybanking.service.LoginUserService;
import com.mybanking.service.UserService;
#Controller
public class UserController {
#Autowired
private UserService userService;
#RequestMapping(value = "/user", method = RequestMethod.GET)
public String showUser(#RequestParam String _dc,
#RequestParam String callback,
HttpServletRequest httpServletRequest,
HttpServletResponse httpServletResponse) throws IOException {
var user = (List<User>) userService.showUser();
System.out.println("callback:\n");
System.out.println(callback);
String user_json = new Gson().toJson(user);
callback += user_json;
System.out.println(callback + '\n');
return callback;
}
}
Here the extjs view, where the UserStore is explicitely loaded in order to show the data retrieved from backend - what does not function
Ext.define('MyBankingApp.view.user.User', {
extend: 'Ext.container.Viewport',
xtype: 'userView',
renderTo: Ext.getBody(),
controller: 'userController',
layout: 'border',
title: 'User',
autoShow: true,
items: [{
xtype : 'tabpanel',
renderTo: Ext.getBody(),
title : 'MyBankingApp',
region : 'center',
controller: 'userController',
items : [{
title: 'User',
//collapsible: true,
items : [{
//xtype : 'grid',
xtype : 'window',
renderTo: Ext.getBody(),
region : 'center',
title : 'User List',
header : true,
store: 'MyBankingApp.store.User',
columns: [{
text: 'ID',
//width: 100,
sortable: false,
dataIndex: 'id'
},
{
text: 'Name',
//width: 100,
dataIndex: 'name'
},
{
text: 'Created',
flex: 1,
dataIndex: 'created',
renderer: Ext.util.Format.dateRenderer('Y-m-d')
}],
dockedItems: [{
xtype: 'pagingtoolbar',
store: 'MyBankingApp.store.User',
dock: 'bottom',
displayInfo: true
}],
listeners: {
beforerender: function() {
var store = Ext.getStore('MyBankingApp.store.User');
store.load();
console.log(store);
var url = store.getProxy().url;
var params = store.getProxy().extraParams;
console.log(url);
console.log(params);
/*
Ext.data.StoreManager.each( function(store) {
console.log(store.id);
});
*/
}
}
}],
},
{
title: 'User',
html: 'Tab content User'
}],
buttons: [{
text: 'Hello',
listeners: {
click: 'onClickButton'
}
}],
buttons: [{
text: 'Logout',
listeners: {
click: 'onClickButton1'
}
}]
}]
});
Here the error message thrown by the backend when I visit the UserView, where the store should be loaded:
2022-07-07 20:31:19.024 INFO 8272 --- [alina-utility-1] com.mybanking.ServletInitializer : Starting ServletInitializer v0.0.1-SNAPSHOT using Java 11.0.15.1 on WIN-86UTNGFROLK with PID 8272 (C:\Users\Administrator\eclipse-workspace\.metadata\.plugins\org.eclipse.wst.server.core\tmp0\wtpwebapps\MyBankingApp\WEB-INF\classes started by Administrator in C:\Windows\system32)
2022-07-07 20:31:19.029 INFO 8272 --- [alina-utility-1] com.mybanking.ServletInitializer : No active profile set, falling back to 1 default profile: "default"
2022-07-07 20:31:20.545 INFO 8272 --- [alina-utility-1] .s.d.r.c.RepositoryConfigurationDelegate : Bootstrapping Spring Data JPA repositories in DEFAULT mode.
2022-07-07 20:31:20.667 INFO 8272 --- [alina-utility-1] .s.d.r.c.RepositoryConfigurationDelegate : Finished Spring Data repository scanning in 98 ms. Found 2 JPA repository interfaces.
2022-07-07 20:31:21.498 INFO 8272 --- [alina-utility-1] o.a.c.c.C.[.[localhost].[/MyBankingApp] : Initializing Spring embedded WebApplicationContext
2022-07-07 20:31:21.498 INFO 8272 --- [alina-utility-1] w.s.c.ServletWebServerApplicationContext : Root WebApplicationContext: initialization completed in 2348 ms
2022-07-07 20:31:22.432 INFO 8272 --- [alina-utility-1] o.hibernate.jpa.internal.util.LogHelper : HHH000204: Processing PersistenceUnitInfo [name: default]
2022-07-07 20:31:22.643 INFO 8272 --- [alina-utility-1] org.hibernate.Version : HHH000412: Hibernate ORM core version 5.6.9.Final
2022-07-07 20:31:23.154 INFO 8272 --- [alina-utility-1] o.hibernate.annotations.common.Version : HCANN000001: Hibernate Commons Annotations {5.1.2.Final}
2022-07-07 20:31:23.399 INFO 8272 --- [alina-utility-1] com.zaxxer.hikari.HikariDataSource : HikariPool-3 - Starting...
2022-07-07 20:31:23.617 INFO 8272 --- [alina-utility-1] com.zaxxer.hikari.HikariDataSource : HikariPool-3 - Start completed.
2022-07-07 20:31:23.659 INFO 8272 --- [alina-utility-1] org.hibernate.dialect.Dialect : HHH000400: Using dialect: org.hibernate.dialect.PostgreSQLDialect
2022-07-07 20:31:24.953 INFO 8272 --- [alina-utility-1] o.h.e.t.j.p.i.JtaPlatformInitiator : HHH000490: Using JtaPlatform implementation: [org.hibernate.engine.transaction.jta.platform.internal.NoJtaPlatform]
2022-07-07 20:31:24.974 INFO 8272 --- [alina-utility-1] j.LocalContainerEntityManagerFactoryBean : Initialized JPA EntityManagerFactory for persistence unit 'default'
2022-07-07 20:31:27.383 INFO 8272 --- [alina-utility-1] com.mybanking.ServletInitializer : Started ServletInitializer in 9.929 seconds (JVM running for 7520.221)
Hello World from MyBankingApp Runner
2022-07-07 20:31:27.436 INFO 8272 --- [alina-utility-1] o.a.c.c.C.[.[localhost].[/MyBankingApp] : Initializing Spring DispatcherServlet 'dispatcher'
2022-07-07 20:31:27.437 INFO 8272 --- [alina-utility-1] o.s.web.servlet.DispatcherServlet : Initializing Servlet 'dispatcher'
2022-07-07 20:31:28.179 INFO 8272 --- [alina-utility-1] o.s.web.servlet.DispatcherServlet : Completed initialization in 742 ms
2022-07-07 20:31:28.229 INFO 8272 --- [alina-utility-1] o.apache.catalina.core.StandardContext : Reloading Context with name [/MyBankingApp] is completed
2022-07-07 20:31:40.935 INFO 8272 --- [io-8080-exec-11] o.a.c.c.C.[.[localhost].[/MyBankingApp] : Initializing Spring DispatcherServlet 'dispatcherServlet'
2022-07-07 20:31:40.936 INFO 8272 --- [io-8080-exec-11] o.s.web.servlet.DispatcherServlet : Initializing Servlet 'dispatcherServlet'
2022-07-07 20:31:40.937 INFO 8272 --- [io-8080-exec-11] o.s.web.servlet.DispatcherServlet : Completed initialization in 1 ms
callback:
Ext.data.JsonP.callback1
Ext.data.JsonP.callback1[{"id":1,"name":"user1","created":"2022-07-07 22:18:27.561538"},{"id":2,"name":"user2","created":"2022-07-07 22:18:39.292204"}]
2022-07-07 20:31:41.966 ERROR 8272 --- [io-8080-exec-11] org.thymeleaf.TemplateEngine : [THYMELEAF][http-nio-8080-exec-11] Exception processing template "Ext.data.JsonP.callback1[{"id":1,"n[...]2:18:27.561538"},{"id":2,"name":"user2","created":"2022-07-07 22:18:39.292204"}]": Error resolving template [Ext.data.JsonP.callback1[{"id":1,"name":"user1","created":"2022-07-07 22:18:27.561538"},{"id":2,"name":"user2","created":"2022-07-07 22:18:39.292204"}]], template might not exist or might not be accessible by any of the configured Template Resolvers
org.thymeleaf.exceptions.TemplateInputException: Error resolving template [Ext.data.JsonP.callback1[{"id":1,"name":"user1","created":"2022-07-07 22:18:27.561538"},{"id":2,"name":"user2","created":"2022-07-07 22:18:39.292204"}]], template might not exist or might not be accessible by any of the configured Template Resolvers
at org.thymeleaf.engine.TemplateManager.resolveTemplate(TemplateManager.java:869) ~[thymeleaf-3.0.15.RELEASE.jar:3.0.15.RELEASE]
at org.thymeleaf.engine.TemplateManager.parseAndProcess(TemplateManager.java:607) ~[thymeleaf-3.0.15.RELEASE.jar:3.0.15.RELEASE]
at org.thymeleaf.TemplateEngine.process(TemplateEngine.java:1098) ~[thymeleaf-3.0.15.RELEASE.jar:3.0.15.RELEASE]
at org.thymeleaf.TemplateEngine.process(TemplateEngine.java:1072) ~[thymeleaf-3.0.15.RELEASE.jar:3.0.15.RELEASE]
at org.thymeleaf.spring5.view.ThymeleafView.renderFragment(ThymeleafView.java:366) ~[thymeleaf-spring5-3.0.15.RELEASE.jar:3.0.15.RELEASE]
at org.thymeleaf.spring5.view.ThymeleafView.render(ThymeleafView.java:190) ~[thymeleaf-spring5-3.0.15.RELEASE.jar:3.0.15.RELEASE]
at org.springframework.web.servlet.DispatcherServlet.render(DispatcherServlet.java:1401) ~[spring-webmvc-5.3.21.jar:5.3.21]
at org.springframework.web.servlet.DispatcherServlet.processDispatchResult(DispatcherServlet.java:1145) ~[spring-webmvc-5.3.21.jar:5.3.21]
at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:1084) ~[spring-webmvc-5.3.21.jar:5.3.21]
at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:963) ~[spring-webmvc-5.3.21.jar:5.3.21]
at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:1006) ~[spring-webmvc-5.3.21.jar:5.3.21]
at org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:898) ~[spring-webmvc-5.3.21.jar:5.3.21]
at javax.servlet.http.HttpServlet.service(HttpServlet.java:655) ~[servlet-api.jar:4.0.FR]
at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:883) ~[spring-webmvc-5.3.21.jar:5.3.21]
at javax.servlet.http.HttpServlet.service(HttpServlet.java:764) ~[servlet-api.jar:4.0.FR]
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:227) ~[catalina.jar:9.0.63]
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:162) ~[catalina.jar:9.0.63]
at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:53) ~[tomcat-websocket.jar:9.0.63]
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:189) ~[catalina.jar:9.0.63]
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:162) ~[catalina.jar:9.0.63]
at org.springframework.boot.web.servlet.support.ErrorPageFilter.doFilter(ErrorPageFilter.java:126) ~[spring-boot-2.7.1.jar:2.7.1]
at org.springframework.boot.web.servlet.support.ErrorPageFilter.access$000(ErrorPageFilter.java:64) ~[spring-boot-2.7.1.jar:2.7.1]
at org.springframework.boot.web.servlet.support.ErrorPageFilter$1.doFilterInternal(ErrorPageFilter.java:101) ~[spring-boot-2.7.1.jar:2.7.1]
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:117) ~[spring-web-5.3.21.jar:5.3.21]
at org.springframework.boot.web.servlet.support.ErrorPageFilter.doFilter(ErrorPageFilter.java:119) ~[spring-boot-2.7.1.jar:2.7.1]
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:189) ~[catalina.jar:9.0.63]
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:162) ~[catalina.jar:9.0.63]
at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:201) ~[spring-web-5.3.21.jar:5.3.21]
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:117) ~[spring-web-5.3.21.jar:5.3.21]
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:189) ~[catalina.jar:9.0.63]
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:162) ~[catalina.jar:9.0.63]
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:197) ~[catalina.jar:9.0.63]
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:97) ~[catalina.jar:9.0.63]
at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:541) ~[catalina.jar:9.0.63]
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:135) ~[catalina.jar:9.0.63]
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:92) ~[catalina.jar:9.0.63]
at org.apache.catalina.valves.AbstractAccessLogValve.invoke(AbstractAccessLogValve.java:687) ~[catalina.jar:9.0.63]
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:78) ~[catalina.jar:9.0.63]
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:360) ~[catalina.jar:9.0.63]
at org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:399) ~[tomcat-coyote.jar:9.0.63]
at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:65) ~[tomcat-coyote.jar:9.0.63]
at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:890) ~[tomcat-coyote.jar:9.0.63]
at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1743) ~[tomcat-coyote.jar:9.0.63]
at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49) ~[tomcat-coyote.jar:9.0.63]
at org.apache.tomcat.util.threads.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1191) ~[tomcat-util.jar:9.0.63]
at org.apache.tomcat.util.threads.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:659) ~[tomcat-util.jar:9.0.63]
at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61) ~[tomcat-util.jar:9.0.63]
at java.base/java.lang.Thread.run(Thread.java:834) ~[na:na]
2022-07-07 20:31:41.969 ERROR 8272 --- [io-8080-exec-11] o.s.b.w.servlet.support.ErrorPageFilter : Forwarding to error page from request [/user] due to exception [Error resolving template [Ext.data.JsonP.callback1[{"id":1,"name":"user1","created":"2022-07-07 22:18:27.561538"},{"id":2,"name":"user2","created":"2022-07-07 22:18:39.292204"}]], template might not exist or might not be accessible by any of the configured Template Resolvers]
org.thymeleaf.exceptions.TemplateInputException: Error resolving template [Ext.data.JsonP.callback1[{"id":1,"name":"user1","created":"2022-07-07 22:18:27.561538"},{"id":2,"name":"user2","created":"2022-07-07 22:18:39.292204"}]], template might not exist or might not be accessible by any of the configured Template Resolvers
at org.thymeleaf.engine.TemplateManager.resolveTemplate(TemplateManager.java:869) ~[thymeleaf-3.0.15.RELEASE.jar:3.0.15.RELEASE]
at org.thymeleaf.engine.TemplateManager.parseAndProcess(TemplateManager.java:607) ~[thymeleaf-3.0.15.RELEASE.jar:3.0.15.RELEASE]
at org.thymeleaf.TemplateEngine.process(TemplateEngine.java:1098) ~[thymeleaf-3.0.15.RELEASE.jar:3.0.15.RELEASE]
at org.thymeleaf.TemplateEngine.process(TemplateEngine.java:1072) ~[thymeleaf-3.0.15.RELEASE.jar:3.0.15.RELEASE]
at org.thymeleaf.spring5.view.ThymeleafView.renderFragment(ThymeleafView.java:366) ~[thymeleaf-spring5-3.0.15.RELEASE.jar:3.0.15.RELEASE]
at org.thymeleaf.spring5.view.ThymeleafView.render(ThymeleafView.java:190) ~[thymeleaf-spring5-3.0.15.RELEASE.jar:3.0.15.RELEASE]
at org.springframework.web.servlet.DispatcherServlet.render(DispatcherServlet.java:1401) ~[spring-webmvc-5.3.21.jar:5.3.21]
at org.springframework.web.servlet.DispatcherServlet.processDispatchResult(DispatcherServlet.java:1145) ~[spring-webmvc-5.3.21.jar:5.3.21]
at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:1084) ~[spring-webmvc-5.3.21.jar:5.3.21]
at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:963) ~[spring-webmvc-5.3.21.jar:5.3.21]
at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:1006) ~[spring-webmvc-5.3.21.jar:5.3.21]
at org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:898) ~[spring-webmvc-5.3.21.jar:5.3.21]
at javax.servlet.http.HttpServlet.service(HttpServlet.java:655) ~[servlet-api.jar:4.0.FR]
at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:883) ~[spring-webmvc-5.3.21.jar:5.3.21]
at javax.servlet.http.HttpServlet.service(HttpServlet.java:764) ~[servlet-api.jar:4.0.FR]
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:227) ~[catalina.jar:9.0.63]
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:162) ~[catalina.jar:9.0.63]
at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:53) ~[tomcat-websocket.jar:9.0.63]
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:189) ~[catalina.jar:9.0.63]
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:162) ~[catalina.jar:9.0.63]
at org.springframework.boot.web.servlet.support.ErrorPageFilter.doFilter(ErrorPageFilter.java:126) ~[spring-boot-2.7.1.jar:2.7.1]
at org.springframework.boot.web.servlet.support.ErrorPageFilter.access$000(ErrorPageFilter.java:64) ~[spring-boot-2.7.1.jar:2.7.1]
at org.springframework.boot.web.servlet.support.ErrorPageFilter$1.doFilterInternal(ErrorPageFilter.java:101) ~[spring-boot-2.7.1.jar:2.7.1]
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:117) ~[spring-web-5.3.21.jar:5.3.21]
at org.springframework.boot.web.servlet.support.ErrorPageFilter.doFilter(ErrorPageFilter.java:119) ~[spring-boot-2.7.1.jar:2.7.1]
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:189) ~[catalina.jar:9.0.63]
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:162) ~[catalina.jar:9.0.63]
at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:201) ~[spring-web-5.3.21.jar:5.3.21]
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:117) ~[spring-web-5.3.21.jar:5.3.21]
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:189) ~[catalina.jar:9.0.63]
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:162) ~[catalina.jar:9.0.63]
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:197) ~[catalina.jar:9.0.63]
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:97) ~[catalina.jar:9.0.63]
at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:541) ~[catalina.jar:9.0.63]
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:135) ~[catalina.jar:9.0.63]
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:92) ~[catalina.jar:9.0.63]
at org.apache.catalina.valves.AbstractAccessLogValve.invoke(AbstractAccessLogValve.java:687) ~[catalina.jar:9.0.63]
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:78) ~[catalina.jar:9.0.63]
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:360) ~[catalina.jar:9.0.63]
at org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:399) ~[tomcat-coyote.jar:9.0.63]
at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:65) ~[tomcat-coyote.jar:9.0.63]
at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:890) ~[tomcat-coyote.jar:9.0.63]
at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1743) ~[tomcat-coyote.jar:9.0.63]
at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49) ~[tomcat-coyote.jar:9.0.63]
at org.apache.tomcat.util.threads.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1191) ~[tomcat-util.jar:9.0.63]
at org.apache.tomcat.util.threads.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:659) ~[tomcat-util.jar:9.0.63]
at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61) ~[tomcat-util.jar:9.0.63]
at java.base/java.lang.Thread.run(Thread.java:834) ~[na:na]
So now:
I'm testing on Windows 10 and Windows Server 2022, with same results
I'm developing in Eclipse / Spring Tool Suite 4
I'm testing with sencha app watch (localhost:1841) and Eclipse Tomcat 9 (localhost:8080) and also on a separate Tomcat 9 (localhost:80) instance
The exception shown above clearly says, that Spring tries to return the response to a Spring template and not to the sender (which isn't known by the backend)
But it also says, that the data could be retrieved successfully from the database, as it is shown in the built json string (2 sets)
But there do exist solutions in order to get what I want: Spring returns back its responses to Extjs, but I really don't know how I could achieve it.
Apart from the approaches I tried without success, I had to work with a similar project config like mine some years ago, but I really don't remember the details...