问题描述
当我尝试在表中按 ID 编辑、添加或删除乘客时，我收到错误 500：
这里有一个错误
hereorg.springframework.aop.framework.ReflectiveMethodInvocation.invokeJoinpoint(ReflectiveMethodInvocation.java:198)`
> org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:163)
> org.springframework.transaction.interceptor.TransactionAspectSupport.invokeWithinTransaction(TransactionAspectSupport.java:294)
> org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:98)
> org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:186)
> org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:215)
> com.sun.proxy.$Proxy41.getById(Unknown Source)
> com.javaschool.ev.controller.PassengerController.editPassenger(PassengerController.java:57)
> java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native
> Method)
> java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
> java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
> java.base/java.lang.reflect.Method.invoke(Method.java:566)
> org.springframework.web.method.support.InvocableHandlerMethod.doInvoke(InvocableHandlerMethod.java:197)
> org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:141)
> org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:106)
> org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandlerMethod(RequestMappingHandlerAdapter.java:894)
> org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:808)
> org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:87)
> org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:1060)
> org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:962)
> org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:1006)
> org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:898)
> javax.servlet.http.HttpServlet.service(HttpServlet.java:626)
> org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:883)
> javax.servlet.http.HttpServlet.service(HttpServlet.java:733)
> org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:201)
> org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119)
> org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:53)
> Note The full stack trace of the root cause is available in the server
> logs.
>
> Apache Tomcat/9.0.45
只有我自己输入 ID 才能编辑乘客。
这是我的jsp：
</head>
<body>
<h2>SBB Passengers</h2>
<h2><a href="${pageContext.request.contextPath}/editPassenger">Edit or Add Passenger</a> </h2>
<table>
<tr>
<th>Passenger ID</th>
<th>First Name</th>
<th>Last Name</th>
<th>Birth Date</th>
<th>Action</th>
</tr>
<c:forEach var="passenger" items="${passengerList}">
<tr>
<td>${passenger.passengerID}</td>
<td>${passenger.firstName}</td>
<td>${passenger.lastName}</td>
<td>${passenger.birthDate}</td>
<td>
<a href="editPassenger/${passenger.passengerID}">Edit</a>
<a href="deletePassenger/${passenger.passengerID}">Delete</a>
</td>
</tr>
</c:forEach>
</table>
<c:url value="/editPassenger" var="add"/>
<a href="${add}">Add new Passenger</a>
</body>
</html>
这是一个控制器
@Controller
public class PassengerController {
/*
add service to call its methods later
@Autowired annotation not to create new objects of the class
*/
private PassengerService passengerService;
@Autowired
public void setPassengerService (PassengerService passengerService){
this.passengerService=passengerService;
}
/*
all passengers list in a table
value="/" is added again to work later with redirect
*/
@RequestMapping(value="/",method = RequestMethod.GET)
public ModelAndView allPassengers() {
List<Passenger> passengers = passengerService.allPassengers();
ModelAndView modelAndView = new ModelAndView();
modelAndView.setViewName("passengers");
modelAndView.addObject("passengerList",passengers);
return modelAndView;
}
/*
get to the EditPassenger without ID
*/
@RequestMapping(value = "/editPassenger",method = RequestMethod.GET)
public ModelAndView editPassenger() {
ModelAndView modelAndView = new ModelAndView();
modelAndView.setViewName("editPassenger");
return modelAndView;
}
/*
get to the EditPassenger Page with ID
*/
@RequestMapping(value = "/editPassenger/{passengerID}",method = RequestMethod.GET)
public ModelAndView editPassenger(@PathVariable("passengerID") int passengerID) {
Passenger passenger = passengerService.getById(passengerID);
ModelAndView modelAndView = new ModelAndView();
modelAndView.setViewName("editPassenger");
modelAndView.addObject("passenger",passenger);
modelAndView.addObject("passenger",passengerService.getById(passengerID));
return modelAndView;
}
/*
edit passenger method
with POST the data is transferred
"redirect:/" is for redirectinf to the "/" address
*/
@RequestMapping(value = "/editPassenger",method = RequestMethod.POST)
public ModelAndView editPassengerPage(@ModelAttribute("passenger") Passenger passenger) {
ModelAndView modelAndView = new ModelAndView();
modelAndView.setViewName("redirect:/");
passengerService.edit(passenger);
return modelAndView;
}
/*
method to get to the page "add new passenger"
jsp looks same as edit --> one jsp for editing and adding the passenger
*/
@RequestMapping(value = "/add",method = RequestMethod.GET)
public ModelAndView addPassenger() {
ModelAndView modelAndView = new ModelAndView();
modelAndView.setViewName("editPassenger");
return modelAndView;
}
/*
method of adding passenger
*/
@RequestMapping(value = "/add",method = RequestMethod.POST)
public ModelAndView addPassenger(@ModelAttribute("passenger") Passenger passenger) {
ModelAndView modelAndView = new ModelAndView();
modelAndView.setViewName("redirect:/");
passengerService.add(passenger);
return modelAndView;
}
/*
delete passenger from the list
"/" at the beginning is deleted
*/
@RequestMapping(value="/deletePassenger/{passengerID}",method = RequestMethod.GET)
public ModelAndView deletePassenger(@PathVariable("passengerID") int passengerID) {
ModelAndView modelAndView = new ModelAndView();
modelAndView.setViewName("redirect:/");
Passenger passenger = passengerService.getById(passengerID);
passengerService.delete(passenger);
return modelAndView;
}
}
这是一个 pom.xml
<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>SBB</groupId>
<artifactId>SBB</artifactId>
<version>1.0-SNAPSHOT</version>
<packaging>war</packaging>
<name>SBB Maven Webapp</name>
<!-- FIXME change it to the project's website -->
<url>http://www.example.com</url>
<properties>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
<springversion>5.3.6</springversion>
</properties>
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>4.11</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.projectlombok</groupId>
<artifactId>lombok</artifactId>
<version>1.18.20</version>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-core</artifactId>
<version>${springversion}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-beans</artifactId>
<version>${springversion}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-context</artifactId>
<version>${springversion}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-web</artifactId>
<version>${springversion}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-webmvc</artifactId>
<version>${springversion}</version>
</dependency>
<dependency>
<groupId>org.hibernate</groupId>
<artifactId>hibernate-entitymanager</artifactId>
<version>6.0.0.Alpha7</version>
<type>pom</type>
</dependency>
<dependency>
<groupId>org.codehaus.jackson</groupId>
<artifactId>jackson-mapper-asl</artifactId>
<version>1.9.13</version>
</dependency>
<dependency>
<groupId>javax.persistence</groupId>
<artifactId>javax.persistence-api</artifactId>
<version>2.2</version>
</dependency>
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
<version>8.0.24</version>
</dependency>
<dependency>
<groupId>com.fasterxml.jackson.core</groupId>
<artifactId>jackson-core</artifactId>
<version>2.12.3</version>
</dependency>
<dependency>
<groupId>com.fasterxml.jackson.core</groupId>
<artifactId>jackson-databind</artifactId>
<version>2.12.3</version>
</dependency>
<dependency>
<groupId>com.fasterxml.jackson.core</groupId>
<artifactId>jackson-annotations</artifactId>
<version>2.12.3</version>
</dependency>
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>javax.servlet-api</artifactId>
<version>4.0.1</version>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>jstl</artifactId>
<version>1.2</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-orm</artifactId>
<version>5.1.1.RELEASE</version>
</dependency>
<dependency>
<groupId>org.hibernate</groupId>
<artifactId>hibernate-core</artifactId>
<version>5.3.7.Final</version>
</dependency>
<dependency>
<groupId>org.apache.tomcat</groupId>
<artifactId>tomcat-dbcp</artifactId>
<version>9.0.10</version>
</dependency>
</dependencies>
<build>
<finalName>SBB</finalName>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-war-plugin</artifactId>
<version>3.2.2</version>
</plugin>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<configuration>
<source>11</source>
<target>11</target>
</configuration>
</plugin>
</plugins>
这是一个 Hibernate 配置：
@Configuration
@ComponentScan(basePackages = "com.javaschool.ev")
@EnableTransactionManagement
@PropertySource(value = "classpath:db.properties")
public class HibernateConfig {
private Environment environment;
@Autowired
public void setEnvironment(Environment environment) {
this.environment = environment;
}
private Properties hibernateProperties() {
Properties properties = new Properties();
properties.put("hibernate.dialect",environment.getRequiredProperty("hibernate.dialect"));
properties.put("hibernate.show_sql",environment.getRequiredProperty("hibernate.show_sql"));
return properties;
}
@Bean
public DataSource dataSource() {
DriverManagerDataSource dataSource = new DriverManagerDataSource();
dataSource.setDriverClassName(environment.getRequiredProperty("jdbc.driverClassName"));
dataSource.setUrl(environment.getRequiredProperty("jdbc.url"));
dataSource.setUsername(environment.getRequiredProperty("jdbc.username"));
dataSource.setPassword(environment.getRequiredProperty("jdbc.password"));
return dataSource;
}
@Bean
public LocalSessionFactoryBean sessionFactory() {
LocalSessionFactoryBean sessionFactory = new LocalSessionFactoryBean();
sessionFactory.setDataSource(dataSource());
sessionFactory.setPackagesToScan("com.javaschool.ev.domain");
sessionFactory.setHibernateProperties(hibernateProperties());
return sessionFactory;
}
@Bean
public HibernateTransactionManager transactionManager() {
HibernateTransactionManager transactionManager = new HibernateTransactionManager();
transactionManager.setSessionFactory(sessionFactory().getObject());
return transactionManager;
}
}
解决方法
暂无找到可以解决该程序问题的有效方法，小编努力寻找整理中！
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