【发布时间】：2019-12-20 13:37:31
【问题描述】：
我想用@ModelAttribute 创建一个控制器，它允许我将数据插入到我的客户表中。我已经与员工一起完成了一项工作，但是如何使用@ModelAttribute 以 JSP 形式保存两个休眠映射实体？另外，我正在使用带有 JpaRepository 接口的基本生成的存储库。我想让这两个实体关联起来保存它。
我尝试制作@ModelAttribute JSP 表单，但我不知道如何设置其他表实体。
员工
@Entity
@Table
public class Employee {
@Id
@GeneratedValue(strategy = GenerationType.IDENTITY)
private Long id;
private String firstName;
private String lastName;
@Digits(integer = 10, fraction = 0, message = "Must be a digit")
private Integer age;
private BigDecimal salary;
@Temporal(TemporalType.DATE)
@DateTimeFormat(pattern = "yyyy-MM-dd")
@PastOrPresent(message = "Date must be past or present")
private Date birthDate;
@Temporal(TemporalType.DATE)
@DateTimeFormat(pattern = "yyyy-MM-dd")
@PastOrPresent(message = "Date must be past or present")
private Date hireDate;
private boolean sex; //false - woman, true - man
@OneToOne(mappedBy = "employee")
private Address address;
public Employee() {
}
public Employee(String firstName, String lastName, Integer age, BigDecimal salary, Date birthDate, Date hireDate,
boolean sex) {
this.firstName = firstName;
this.lastName = lastName;
this.age = age;
this.salary = salary;
this.birthDate = birthDate;
this.hireDate = hireDate;
this.sex = sex;
}
public Long getId() {
return id;
}
public void setId(Long id) {
this.id = id;
}
public String getFirstName() {
return firstName;
}
public void setFirstName(String firstName) {
this.firstName = firstName;
}
public String getLastName() {
return lastName;
}
public void setLastName(String lastName) {
this.lastName = lastName;
}
public Integer getAge() {
return age;
}
public void setAge(Integer age) {
this.age = age;
}
public BigDecimal getSalary() {
return salary;
}
public void setSalary(BigDecimal salary) {
this.salary = salary;
}
public Date getBirthDate() {
return birthDate;
}
public void setBirthDate(Date birthDate) {
this.birthDate = birthDate;
}
public Date getHireDate() {
return hireDate;
}
public void setHireDate(Date hireDate) {
this.hireDate = hireDate;
}
public boolean isSex() {
return sex;
}
public void setSex(boolean sex) {
this.sex = sex;
}
public Address getAddress() {
return address;
}
public void setAddress(Address address) {
this.address = address;
}
}
地址
@Entity
@Table
public class Address {
@Id
@GeneratedValue(strategy = GenerationType.IDENTITY)
private Long id;
private String country;
private String city;
private String street;
private Integer houseNumber;
private Integer local;
private String postalCode;
@OneToOne
@JoinColumn(name = "employee_id")
private Employee employee;
public Address() {
}
public Address(String country, String city, String street, Integer houseNumber, Integer local, String postalCode) {
this.country = country;
this.city = city;
this.street = street;
this.houseNumber = houseNumber;
this.local = local;
this.postalCode = postalCode;
}
public Long getId() {
return id;
}
public void setId(Long id) {
this.id = id;
}
public String getCountry() {
return country;
}
public void setCountry(String country) {
this.country = country;
}
public String getCity() {
return city;
}
public void setCity(String city) {
this.city = city;
}
public String getStreet() {
return street;
}
public void setStreet(String street) {
this.street = street;
}
public Integer getHouseNumber() {
return houseNumber;
}
public void setHouseNumber(Integer houseNumber) {
this.houseNumber = houseNumber;
}
public Integer getLocal() {
return local;
}
public void setLocal(Integer local) {
this.local = local;
}
public String getPostalCode() {
return postalCode;
}
public void setPostalCode(String postalCode) {
this.postalCode = postalCode;
}
public Employee getEmployee() {
return employee;
}
public void setEmployee(Employee employee) {
this.employee = employee;
}
}
控制器
@Controller
@RequestMapping("/user")
public class UserController {
@Autowired
public EmployeeService employeeService;
@Autowired
public AddressService addressService;
@GetMapping("/add")
public String addUser(Model model) {
model.addAttribute("employee", new Employee());
return "user/addEmployee";
}
@PostMapping("/add")
public String postAddUser(@Valid @ModelAttribute("employee") Employee employee, BindingResult bs) {
if(bs.hasErrors()) {
return "user/addAddress";
} else {
employeeService.saveOrUpdate(employee);
return "user/success";
}
}
@GetMapping("/address/add")
public String addAddress(Model model) {
List<Employee> employees = employeeService.findAll();
model.addAttribute("employees", employees);
model.addAttribute("address", new Address());
return "user/addAddress";
}
@PostMapping("/address/add")
public String postAddAddress(@ModelAttribute("address") Address address, @RequestParam("employee_id") Long id) {
Employee employee = employeeService.findById(id);
address.setEmployee(employee);
employee.setAddress(address);
addressService.saveOrUpdate(address);
employeeService.saveOrUpdate(employee);
return "user/addAddress";
}
}
addAddress.jsp
<%@ taglib prefix="form" uri="http://www.springframework.org/tags/form"%>
<%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core"%>
<html>
<head></head>
<body>
<h2>Address Form</h2>
<form:form action="/user/address/add" method="POST" modelAttribute="address">
City: <form:input path="city"/><br>
Street: <form:input path="street" /><br>
House Number: <form:input path="houseNumber"/><br>
Local: <form:input path="local"/><br>
Postal Code: <form:input path="postalCode" /><br>
<select name="employee_id">
<c:forEach var="employee" items="${employees}">
<option value="${employee.id}">${employee.id} ${employee.firstName} ${employee.lastName}</option>
</c:forEach>
</select><br>
<input type="submit" />
</form:form>
</body>
</html>
addEmployee.jsp
<%@ taglib prefix="form" uri="http://www.springframework.org/tags/form"%>
<%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core"%>
<html>
<head></head>
<body>
<h2>Employee Form</h2>
<form:form action="/user/add" method="POST" modelAttribute="employee">
First Name: <form:input path="firstName"/> <form:errors path="firstName"></form:errors><br>
Last Name: <form:input path="lastName"/> <form:errors path="lastName"></form:errors><br>
Age: <form:input path="age" /> <form:errors path="age" type="number"></form:errors><br>
Salary: <form:input path="salary" type="number"/> <form:errors path="salary"></form:errors><br>
Birth Date<form:input path="birthDate" type="date"/> <form:errors path="birthDate"></form:errors><br>
Hire Date<form:input path="hireDate" type="date" /> <form:errors path="hireDate"></form:errors><br>
Female: <form:radiobutton path="sex" value="0" /> Male: <form:radiobutton path="sex" value="1" /><br>
<input type="submit" value="Wyślij"/>
</form:form>
</body>
</html>
我需要在数据库中创建一个结果，这两个实体使用@ModelAttribute 建立关系。有可能吗？
【问题讨论】：
-
您是否要为两个实体填写表单，然后在控制器中执行将数据保存到数据库？我对你的理解正确吗？ JSP中有代码吗？
-
是的，我做了两个jsp而不是一个，因为我不知道如何实现它，我会在帖子中更新jsp
标签： spring hibernate spring-boot spring-mvc jsp