在我的应用程序中只有一个简单的表：
CREATE TABLE users(
user_id int,
first_name varchar(40) not null,
last_name varchar(40) not null,
gender varchar(40) not null,
married bool not null,
profile varchar(40) not null);
我也使用百万美元从网络界面获取和设置数据。这个项目结构： structure
的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>com.nfhktwrbq</groupId>
<artifactId>sbth</artifactId>
<version>0.0.1-SNAPSHOT</version>
<packaging>jar</packaging>
<name>sbth</name>
<description>Demo project for Spring Boot</description>
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>1.5.7.RELEASE</version>
<relativePath/> <!-- lookup parent from repository -->
</parent>
<properties>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
<project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
<hibernate-version>5.2.2.Final</hibernate-version>
<java.version>1.8</java.version>
</properties>
<dependencies>
<dependency>
<groupId>org.hibernate</groupId>
<artifactId>hibernate-core</artifactId>
<version>${hibernate-version}</version>
</dependency>
<!-- for JPA, use hibernate-entitymanager instead of hibernate-core -->
<dependency>
<groupId>org.hibernate</groupId>
<artifactId>hibernate-entitymanager</artifactId>
<version>${hibernate-version}</version>
</dependency>
<dependency>
<groupId>org.postgresql</groupId>
<artifactId>postgresql</artifactId>
<version>42.1.4</version>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-thymeleaf</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-devtools</artifactId>
<optional>true</optional>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
</plugin>
</plugins>
</build>
的hibernate.cfg.xml
<?xml version='1.0' encoding='utf-8'?>
<!DOCTYPE hibernate-configuration PUBLIC
"-//Hibernate/Hibernate Configuration DTD//EN"
"http://www.hibernate.org/dtd/hibernate-configuration-3.0.dtd">
<hibernate-configuration>
<session-factory>
<property name="hibernate.dialect">org.hibernate.dialect.PostgreSQL95Dialect</property>
<property name="connection.url">jdbc:postgresql://localhost:5432/postgres</property>
<property name="connection.driver_class">org.postgresql.Driver</property>
<property name="connection.username">muaddib</property>
<property name="connection.password">catch22</property>
<mapping class="com.nfhktwrbq.sbth.UsersEntity"/>
</session-factory>
</hibernate-configuration>
UsersController.java
package com.nfhktwrbq.sbth.controller;
import java.util.ArrayList;
import java.util.List;
import javax.validation.Valid;
import com.nfhktwrbq.sbth.HibernateSessionFactory;
import com.nfhktwrbq.sbth.UsersEntity;
import org.hibernate.Session;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.validation.BindingResult;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.servlet.ModelAndView;
import com.nfhktwrbq.sbth.service.UserService;
@Controller
@RequestMapping("app")
public class UserController {
private static final Logger logger = LoggerFactory.getLogger(UserController.class);
@Autowired
private UserService userService;
@GetMapping("create-user")
public ModelAndView createUserView() {
ModelAndView mav = new ModelAndView();
mav.setViewName("user-creation");
mav.addObject("user", new UsersEntity());
mav.addObject("allProfiles", getProfiles());
return mav;
}
@PostMapping("create-user")
public ModelAndView createUser(@Valid UsersEntity user, BindingResult result) {
ModelAndView mav = new ModelAndView();
if(result.hasErrors()) {
logger.info("Validation errors while submitting form.");
mav.setViewName("user-creation");
mav.addObject("user", user);
mav.addObject("allProfiles", getProfiles());
return mav;
}
userService.addUser(user);
Session session = HibernateSessionFactory.getSessionFactory().openSession();
session.beginTransaction();
session.save(user);
session.getTransaction().commit();
session.close();
mav.addObject("allUsers", userService.getAllUserArticles());
mav.setViewName("user-info");
logger.info("Form submitted successfully.");
return mav;
}
@GetMapping("show-users")
public ModelAndView showUsersView() {
ModelAndView mav = new ModelAndView();
mav.setViewName("user-all");
Session session = HibernateSessionFactory.getSessionFactory().openSession();
session.beginTransaction();
List<UsersEntity> ueList = session.createQuery("from UsersEntity").list();
for (UsersEntity ent : ueList) {
logger.info(ent.getFirstName());
}
mav.addObject("users", ueList);
session.close();
return mav;
}
private List<String> getProfiles() {
List<String> list = new ArrayList<>();
list.add("Developer");
list.add("Manager");
list.add("Director");
return list;
}
}
UsersEntity.java
package com.nfhktwrbq.sbth;
import javax.persistence.*;
import javax.validation.constraints.NotNull;
import javax.validation.constraints.Size;
@Entity
@Table(name = "users_tb", schema = "public", catalog = "muaddib")
public class UsersEntity {
private Integer userId;
@NotNull
@Size(min=1, max=40)
private String firstName;
@NotNull
@Size(min=1, max=40)
private String lastName;
@NotNull
private String gender;
private boolean married;
private String profile;
@Id
@Column(name = "user_id")
public Integer getUserId() {
return userId;
}
public void setUserId(Integer userId) {
this.userId = userId;
}
@Basic
@Column(name = "first_name", nullable = false, length = 40)
public String getFirstName() {
return this.firstName;
}
public void setFirstName(String firstName) {
this.firstName = firstName;
}
@Basic
@Column(name = "last_name", nullable = false, length = 40)
public String getLastName() {
return lastName;
}
public void setLastName(String lastName) {
this.lastName = lastName;
}
@Basic
@Column(name = "gender", nullable = false, length = 40)
public String getGender() {
return gender;
}
public void setGender(String gender) {
this.gender = gender;
}
@Basic
@Column(name = "married", nullable = false)
public boolean isMarried() {
return married;
}
public void setMarried(boolean married) {
this.married = married;
}
@Basic
@Column(name = "profile", nullable = false, length = 40)
public String getProfile() {
return profile;
}
public void setProfile(String profile) {
this.profile = profile;
}
@Override
public boolean equals(Object o) {
if (this == o) return true;
if (o == null || getClass() != o.getClass()) return false;
UsersEntity that = (UsersEntity) o;
if (userId != that.userId) return false;
if (married != that.married) return false;
if (firstName != null ? !firstName.equals(that.firstName) : that.firstName != null) return false;
if (lastName != null ? !lastName.equals(that.lastName) : that.lastName != null) return false;
if (gender != null ? !gender.equals(that.gender) : that.gender != null) return false;
if (profile != null ? !profile.equals(that.profile) : that.profile != null) return false;
return true;
}
@Override
public int hashCode() {
int result = userId == null ? 0: userId.intValue();
result = 31 * result + (firstName != null ? firstName.hashCode() : 0);
result = 31 * result + (lastName != null ? lastName.hashCode() : 0);
result = 31 * result + (gender != null ? gender.hashCode() : 0);
result = 31 * result + (married ? 1 : 0);
result = 31 * result + (profile != null ? profile.hashCode() : 0);
return result;
}
}
行session.save(user)中出现错误
我正在尝试做不同的事情，添加默认构造函数等，但总是得到错误：
调用getter时出现IllegalArgumentException com.nfhktwrbq.sbth.UsersEntity.userId
这是一个简单的应用程序，只有一个表。 hibernate想要什么？
2017-10-03 13:33:04.964 INFO 3863 --- [nio-8080-exec-3] org.hibernate.type.BasicTypeRegistry : HHH000270: Type registration [java.util.UUID] overrides previous : org.hibernate.type.UUIDBinaryType@70d925c5
2017-10-03 13:33:05.781 ERROR 3863 --- [nio-8080-exec-3] o.h.p.access.spi.GetterMethodImpl : HHH000122: IllegalArgumentException in class: com.nfhktwrbq.sbth.UsersEntity, getter method of property: userId
2017-10-03 13:33:05.839 ERROR 3863 --- [nio-8080-exec-3] o.a.c.c.C.[.[.[/].[dispatcherServlet] : Servlet.service() for servlet [dispatcherServlet] in context with path [] threw exception [Request processing failed; nested exception is org.hibernate.PropertyAccessException: IllegalArgumentException occurred calling getter of com.nfhktwrbq.sbth.UsersEntity.userId] with root cause
java.lang.IllegalArgumentException: object is not an instance of declaring class
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:1.8.0_131]
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[na:1.8.0_131]
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:1.8.0_131]
at java.lang.reflect.Method.invoke(Method.java:498) ~[na:1.8.0_131]
at org.hibernate.property.access.spi.GetterMethodImpl.get(GetterMethodImpl.java:41) ~[hibernate-core-5.2.2.Final.jar:5.2.2.Final]
at org.hibernate.tuple.entity.AbstractEntityTuplizer.getIdentifier(AbstractEntityTuplizer.java:224) ~[hibernate-core-5.2.2.Final.jar:5.2.2.Final]
at org.hibernate.persister.entity.AbstractEntityPersister.getIdentifier(AbstractEntityPersister.java:4646) ~[hibernate-core-5.2.2.Final.jar:5.2.2.Final]
at org.hibernate.id.Assigned.generate(Assigned.java:31) ~[hibernate-core-5.2.2.Final.jar:5.2.2.Final]
at org.hibernate.event.internal.AbstractSaveEventListener.saveWithGeneratedId(AbstractSaveEventListener.java:105) ~[hibernate-core-5.2.2.Final.jar:5.2.2.Final]
at org.hibernate.event.internal.DefaultSaveOrUpdateEventListener.saveWithGeneratedOrRequestedId(DefaultSaveOrUpdateEventListener.java:192) ~[hibernate-core-5.2.2.Final.jar:5.2.2.Final]
at org.hibernate.event.internal.DefaultSaveEventListener.saveWithGeneratedOrRequestedId(DefaultSaveEventListener.java:38) ~[hibernate-core-5.2.2.Final.jar:5.2.2.Final]
at org.hibernate.event.internal.DefaultSaveOrUpdateEventListener.entityIsTransient(DefaultSaveOrUpdateEventListener.java:177) ~[hibernate-core-5.2.2.Final.jar:5.2.2.Final]
at org.hibernate.event.internal.DefaultSaveEventListener.performSaveOrUpdate(DefaultSaveEventListener.java:32) ~[hibernate-core-5.2.2.Final.jar:5.2.2.Final]
at org.hibernate.event.internal.DefaultSaveOrUpdateEventListener.onSaveOrUpdate(DefaultSaveOrUpdateEventListener.java:73) ~[hibernate-core-5.2.2.Final.jar:5.2.2.Final]
at org.hibernate.internal.SessionImpl.fireSave(SessionImpl.java:673) ~[hibernate-core-5.2.2.Final.jar:5.2.2.Final]
at org.hibernate.internal.SessionImpl.save(SessionImpl.java:665) ~[hibernate-core-5.2.2.Final.jar:5.2.2.Final]
at org.hibernate.internal.SessionImpl.save(SessionImpl.java:660) ~[hibernate-core-5.2.2.Final.jar:5.2.2.Final]
at com.nfhktwrbq.sbth.controller.UserController.createUser(UserController.java:47) ~[classes/:na]
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:1.8.0_131]
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[na:1.8.0_131]
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:1.8.0_131]
at java.lang.reflect.Method.invoke(Method.java:498) ~[na:1.8.0_131]
at org.springframework.web.method.support.InvocableHandlerMethod.doInvoke(InvocableHandlerMethod.java:205) ~[spring-web-4.3.11.RELEASE.jar:4.3.11.RELEASE]
at org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:133) ~[spring-web-4.3.11.RELEASE.jar:4.3.11.RELEASE]
at org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:97) ~[spring-webmvc-4.3.11.RELEASE.jar:4.3.11.RELEASE]
at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandlerMethod(RequestMappingHandlerAdapter.java:827) ~[spring-webmvc-4.3.11.RELEASE.jar:4.3.11.RELEASE]
at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:738) ~[spring-webmvc-4.3.11.RELEASE.jar:4.3.11.RELEASE]
at org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:85) ~[spring-webmvc-4.3.11.RELEASE.jar:4.3.11.RELEASE]
at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:967) ~[spring-webmvc-4.3.11.RELEASE.jar:4.3.11.RELEASE]
at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:901) ~[spring-webmvc-4.3.11.RELEASE.jar:4.3.11.RELEASE]
at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:970) ~[spring-webmvc-4.3.11.RELEASE.jar:4.3.11.RELEASE]
at org.springframework.web.servlet.FrameworkServlet.doPost(FrameworkServlet.java:872) ~[spring-webmvc-4.3.11.RELEASE.jar:4.3.11.RELEASE]
at javax.servlet.http.HttpServlet.service(HttpServlet.java:661) ~[tomcat-embed-core-8.5.20.jar:8.5.20]
at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:846) ~[spring-webmvc-4.3.11.RELEASE.jar:4.3.11.RELEASE]
at javax.servlet.http.HttpServlet.service(HttpServlet.java:742) ~[tomcat-embed-core-8.5.20.jar:8.5.20]
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:231) ~[tomcat-embed-core-8.5.20.jar:8.5.20]
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) ~[tomcat-embed-core-8.5.20.jar:8.5.20]
at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52) ~[tomcat-embed-websocket-8.5.20.jar:8.5.20]
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) ~[tomcat-embed-core-8.5.20.jar:8.5.20]
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) ~[tomcat-embed-core-8.5.20.jar:8.5.20]
at org.springframework.web.filter.RequestContextFilter.doFilterInternal(RequestContextFilter.java:99) ~[spring-web-4.3.11.RELEASE.jar:4.3.11.RELEASE]
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) ~[spring-web-4.3.11.RELEASE.jar:4.3.11.RELEASE]
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) ~[tomcat-embed-core-8.5.20.jar:8.5.20]
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) ~[tomcat-embed-core-8.5.20.jar:8.5.20]
at org.springframework.web.filter.HttpPutFormContentFilter.doFilterInternal(HttpPutFormContentFilter.java:108) ~[spring-web-4.3.11.RELEASE.jar:4.3.11.RELEASE]
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) ~[spring-web-4.3.11.RELEASE.jar:4.3.11.RELEASE]
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) ~[tomcat-embed-core-8.5.20.jar:8.5.20]
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) ~[tomcat-embed-core-8.5.20.jar:8.5.20]
at org.springframework.web.filter.HiddenHttpMethodFilter.doFilterInternal(HiddenHttpMethodFilter.java:81) ~[spring-web-4.3.11.RELEASE.jar:4.3.11.RELEASE]
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) ~[spring-web-4.3.11.RELEASE.jar:4.3.11.RELEASE]
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) ~[tomcat-embed-core-8.5.20.jar:8.5.20]
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) ~[tomcat-embed-core-8.5.20.jar:8.5.20]
at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:197) ~[spring-web-4.3.11.RELEASE.jar:4.3.11.RELEASE]
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) ~[spring-web-4.3.11.RELEASE.jar:4.3.11.RELEASE]
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) ~[tomcat-embed-core-8.5.20.jar:8.5.20]
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) ~[tomcat-embed-core-8.5.20.jar:8.5.20]
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:198) ~[tomcat-embed-core-8.5.20.jar:8.5.20]
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:96) [tomcat-embed-core-8.5.20.jar:8.5.20]
at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:478) [tomcat-embed-core-8.5.20.jar:8.5.20]
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:140) [tomcat-embed-core-8.5.20.jar:8.5.20]
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:80) [tomcat-embed-core-8.5.20.jar:8.5.20]
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:87) [tomcat-embed-core-8.5.20.jar:8.5.20]
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:342) [tomcat-embed-core-8.5.20.jar:8.5.20]
at org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:799) [tomcat-embed-core-8.5.20.jar:8.5.20]
at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:66) [tomcat-embed-core-8.5.20.jar:8.5.20]
at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:868) [tomcat-embed-core-8.5.20.jar:8.5.20]
at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1457) [tomcat-embed-core-8.5.20.jar:8.5.20]
at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49) [tomcat-embed-core-8.5.20.jar:8.5.20]
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142) [na:1.8.0_131]
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) [na:1.8.0_131]
at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61) [tomcat-embed-core-8.5.20.jar:8.5.20]
at java.lang.Thread.run(Thread.java:748) [na:1.8.0_131]