javascript - 插入对象时未返回响应

Question

我有一些表单数据，我正在使用 spring boot，我通过 AJAX 发送 POST 请求，它已成功插入数据库中。但是，由于它正在插入数据库中，所以我期待响应，但是console.log(response) 中没有响应。

表单数据已成功插入数据库，我的ajax代码是:

var employee={
      "iNumber":$("#iNumber").val(),
       "fullName":$("#fullName").val(),
       "joinedDate":$("#joinedDate").val(),
         "position":$("#position").val(),
       "reportsTo":$("#reportsTo").val(),
        "cubicleNo":$("#cubicleNo").val(),
      "jobType":$("#jobType").val()
};

$.ajax({
                    url: A_PAGE_CONTEXT_PATH + "/insert-emp",
                    method: "post",
                    contentType: "application/json",
                    dataType: "json",
                    data: JSON.stringify(employee),
                      success: function(response) {
                                console.log(response);
                            }, error: function(response){
                        switch(response.status){
                            case 409:
                            alert("error");
                        }
                    }
                });

Rest Api 是:

package com.ashwin.vemployee.restcontroller;

import com.ashwin.vemployee.model.Employee;
import com.ashwin.vemployee.response.ResponseMessage;
import com.ashwin.vemployee.service.EmployeeService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.http.HttpStatus;
import org.springframework.http.ResponseEntity;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.RequestBody;
import org.springframework.web.bind.annotation.ResponseBody;
import org.springframework.web.bind.annotation.RestController;
import org.springframework.web.servlet.support.ServletUriComponentsBuilder;

import javax.validation.Valid;
import java.net.URI;

@RestController
public class EmployeeController {

    @Autowired
    private EmployeeService empService;

  @PostMapping("/insert-emp")
    public ResponseEntity<Object> createUser(@Valid @RequestBody Employee employee){
        Employee savedUser= empService.saveEmployee(employee);



        //return status of HTtp after created
       URI location= ServletUriComponentsBuilder.fromCurrentRequest().path("/{id}").
               buildAndExpand(savedUser.getiNumber()).toUri();
       return ResponseEntity.created(location).build();
    }
}   

服务类别是:

package com.ashwin.vemployee.service;

import com.ashwin.vemployee.model.Employee;
import com.ashwin.vemployee.repository.EmployeeRepository;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;

@Service
public class EmployeeService {

    @Autowired
    private EmployeeRepository empRepository;

    public Employee saveEmployee(Employee employee){
        if(employee.getiNumber()==0){
            empRepository.save(employee);
        }
        else{
            empRepository.save(employee);
        }
        return  employee;
    }

}

存储库是:

package com.ashwin.vemployee.repository;

import com.ashwin.vemployee.model.Employee;
import org.springframework.data.jpa.repository.JpaRepository;
import org.springframework.stereotype.Repository;

@Repository
public interface  EmployeeRepository  extends JpaRepository<Employee,Integer> {
}

数据已成功插入数据库，但我的 console.log(response) 中没有任何响应。

我的 pom.xml 是:

<?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 https://maven.apache.org/xsd/maven-4.0.0.xsd">
    <modelVersion>4.0.0</modelVersion>
    <parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>2.2.1.RELEASE</version>
        <relativePath/> <!-- lookup parent from repository -->
    </parent>
    <groupId>com.ashwin</groupId>
    <artifactId>vemployee</artifactId>
    <version>0.0.1-SNAPSHOT</version>
    <name>vemployee</name>
    <description>Demo project for Spring Boot for offc</description>

    <properties>
        <java.version>1.8</java.version>
    </properties>

    <dependencies>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-data-jpa</artifactId>
        </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>
            <scope>runtime</scope>
            <optional>true</optional>
        </dependency>

        <!-- https://mvnrepository.com/artifact/jstl/jstl -->
        <dependency>
            <groupId>jstl</groupId>
            <artifactId>jstl</artifactId>
            <version>1.2</version>
        </dependency>

        <!-- needed for jsp -->
        <dependency>
            <groupId>org.apache.tomcat.embed</groupId>
            <artifactId>tomcat-embed-jasper</artifactId>
            <version>9.0.27</version>
        </dependency>

        <!--bootsrap and jquery-->
        <dependency>
            <groupId>org.webjars</groupId>
            <artifactId>bootstrap</artifactId>
            <version>4.3.1</version>
        </dependency>
        <dependency>
            <groupId>org.webjars</groupId>
            <artifactId>jquery</artifactId>
            <version>3.4.0</version>
        </dependency>

        <!-- https://mvnrepository.com/artifact/org.webjars/bootstrap-datepicker -->
        <dependency>
            <groupId>org.webjars</groupId>
            <artifactId>bootstrap-datepicker</artifactId>
            <version>1.7.1</version>
        </dependency>

        <!--        <dependency>-->
<!--            <groupId>com.oracle.ojdbc</groupId>-->
<!--            <artifactId>ojdbc8</artifactId>-->
<!--            <scope>runtime</scope>-->
<!--        </dependency>-->
        <dependency>
            <groupId>mysql</groupId>
            <artifactId>mysql-connector-java</artifactId>
            <scope>runtime</scope>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-test</artifactId>
            <scope>test</scope>
            <exclusions>
                <exclusion>
                    <groupId>org.junit.vintage</groupId>
                    <artifactId>junit-vintage-engine</artifactId>
                </exclusion>
            </exclusions>
        </dependency>
    </dependencies>

    <build>
        <plugins>
            <plugin>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-maven-plugin</artifactId>
            </plugin>
        </plugins>
    </build>

</project>

我的模型类 Employee.java 是:

package com.ashwin.vemployee.model;

import javax.persistence.*;
import javax.validation.constraints.NotBlank;
import java.util.Date;

@Entity
@Table(name = "employee")
public class Employee {

    @Id
    @GeneratedValue(strategy = GenerationType.IDENTITY)
    private Integer iNumber;

    @NotBlank
    private String fullName;

//    @NotBlank
    private String joinedDate;

    @NotBlank
    private String position;

    @NotBlank
    private String reportsTo;

    @NotBlank
    private String cubicleNo;

    @NotBlank
    private String jobType;


    public Employee() {
    }

    public Integer getiNumber() {
        return iNumber;
    }

    public void setiNumber(Integer iNumber) {
        this.iNumber = iNumber;
    }

    public String getFullName() {
        return fullName;
    }

    public void setFullName(String fullName) {
        this.fullName = fullName;
    }

    public String getJoinedDate() {
        return joinedDate;
    }

    public void setJoinedDate(String joinedDate) {
        this.joinedDate = joinedDate;
    }

    public String getPosition() {
        return position;
    }

    public void setPosition(String position) {
        this.position = position;
    }

    public String getReportsTo() {
        return reportsTo;
    }

    public void setReportsTo(String reportsTo) {
        this.reportsTo = reportsTo;
    }

    public String getCubicleNo() {
        return cubicleNo;
    }

    public void setCubicleNo(String cubicleNo) {
        this.cubicleNo = cubicleNo;
    }

    public String getJobType() {
        return jobType;
    }

    public void setJobType(String jobType) {
        this.jobType = jobType;
    }

}

Answer 1

您无需在响应正文中设置任何内容，您可以这样设置 -ResponseEntity.created(location).body(已保存的用户).build()