Question

现在尝试连接我的有角度的前端和springboot后端。

2019-03-19 04：50：49.853 WARN 32028 --- [nio-8095-exec-3] .wsmsDefaultHandlerExceptionResolver：已解决[org.springframework.http.converter.HttpMessageNotReadableException：缺少所需的请求正文：public void lk.arpico.proddb.controller.OccupationController.add（lk.arpico.proddb.dto.OccupationDto）] 2019-03-19 05：01：27.749错误32028-[nio-8095-exec-6] oaccC [。[。[/]。[dispatcherServlet]：Servlet [dispatcherServlet]的Servlet.service（）路径[]引发异常[请求处理失败；嵌套的异常是org.springframework.orm.jpa.JpaSystemException：此类的ID必须在调用save（）之前手动分配：lk.arpico.proddb.entity.OccupationEntity;嵌套的异常是org.hibernate.id.IdentifierGenerationException：此类的ID必须在根本原因之前调用save（）：lk.arpico.proddb.entity.OccupationEntity]之前手动分配。

org.hibernate.id.IdentifierGenerationException：此类的ID必须在调用save（）之前手动分配：lk.arpico.proddb.entity.OccupationEntity 在org.hibernate.id.Assigned.generate（Assigned.java:33）〜[hibernate-core-5.4.0.Final.jar：5.4.0.Final]

但是我将@requestbody注释放入了我的职业控制器中...

package lk.arpico.proddb.controller;

import java.util.List;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.CrossOrigin;
import org.springframework.web.bind.annotation.DeleteMapping;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.PathVariable;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.PutMapping;
import org.springframework.web.bind.annotation.RequestBody;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;

import lk.arpico.proddb.dto.NumberParamDto;
import lk.arpico.proddb.dto.OccupationDto;
import lk.arpico.proddb.entity.NumberParamsEntity;
import lk.arpico.proddb.entity.OccupationEntity;
import lk.arpico.proddb.service.OccupationService;

@RestController
@RequestMapping("occupation")
@CrossOrigin("*")
public class OccupationController {

@Autowired
private OccupationService occupationService;

@PostMapping("/add")
public void add(@RequestBody OccupationDto occupation) {
    occupationService.add(occupation);
    System.out.println("malinga"+occupation);
}

}

这是我的职业实体。

package lk.arpico.proddb.entity;

import java.util.ArrayList;
import java.util.Date;
import java.util.List;

import javax.persistence.Column;
import javax.persistence.Entity;
import javax.persistence.Id;
import javax.persistence.OneToMany;
import javax.persistence.Table;
import javax.persistence.Temporal;
import javax.persistence.TemporalType;

@Entity
@Table(name = "occupation")
public class OccupationEntity {

@Id
@Column(name = "occupation_Id", length = 11, nullable = false)
private String occupationId;

@Column(name = "code",length = 10, nullable = false)
private String code;

@Column(name = "createBy", length = 50, nullable = false)
private String createBy;

@Column(name = "createDate", nullable = false, 
columnDefinition="DATETIME")
@Temporal(TemporalType.TIMESTAMP)
private Date createDate;

@Column(name = "isEnable", length = 11, nullable = false, 
columnDefinition = "SMALLINT(1)")
private Integer isEnable;

@Column(name = "modifyBy", length = 50, nullable = true)
private String modifyBy;

@Column(name = "modifyDate", nullable = true, 
columnDefinition="DATETIME")
@Temporal(TemporalType.TIMESTAMP)
private Date modifyDate;

@Column(name = "name", length = 60, nullable = false)
private String name;

@Column(name = "shortName", length = 15, nullable = false)
private String sName;

@OneToMany(mappedBy = "occupationEntity", targetEntity = 
OccupationLoadingEntity.class)
private List<OccupationLoadingEntity> occupationLoadingEntities= new 
ArrayList<>();

public OccupationEntity() {
    // TODO Auto-generated constructor stub
}

public OccupationEntity(String occupationId, String code, String 
createBy, Date createDate, Integer isEnable,
        String modifyBy, Date modifyDate, String name, String sName,
        List<OccupationLoadingEntity> occupationLoadingEntities) {
    super();
    this.occupationId = occupationId;
    this.code = code;
    this.createBy = createBy;
    this.createDate = createDate;
    this.isEnable = isEnable;
    this.modifyBy = modifyBy;
    this.modifyDate = modifyDate;
    this.name = name;
    this.sName = sName;
    this.occupationLoadingEntities = occupationLoadingEntities;
}

public String getOccupationId() {
    return occupationId;
}

public void setOccupationId(String occupationId) {
    this.occupationId = occupationId;
}

public String getCode() {
    return code;
}

public void setCode(String code) {
    this.code = code;
}

public String getCreateBy() {
    return createBy;
}

public void setCreateBy(String createBy) {
    this.createBy = createBy;
}

public Date getCreateDate() {
    return createDate;
}

public void setCreateDate(Date createDate) {
    this.createDate = createDate;
}

public Integer getIsEnable() {
    return isEnable;
}

public void setIsEnable(Integer isEnable) {
    this.isEnable = isEnable;
}

public String getModifyBy() {
    return modifyBy;
}

public void setModifyBy(String modifyBy) {
    this.modifyBy = modifyBy;
}

public Date getModifyDate() {
    return modifyDate;
}

public void setModifyDate(Date modifyDate) {
    this.modifyDate = modifyDate;
}

public String getName() {
    return name;
}

public void setName(String name) {
    this.name = name;
}

public String getsName() {
    return sName;
}

public void setsName(String sName) {
    this.sName = sName;
}

public List<OccupationLoadingEntity> getOccupationLoadingEntities() {
    return occupationLoadingEntities;
}

public void setOccupationLoadingEntities(List<OccupationLoadingEntity> occupationLoadingEntities) {
    this.occupationLoadingEntities = occupationLoadingEntities;
}

@Override
public String toString() {
    return "OccupationEntity [occupationId=" + occupationId + ", 
 code=" + code + ", createBy=" + createBy
            + ", createDate=" + createDate + ", isEnable=" + isEnable 
+ ", modifyBy=" + modifyBy + ", modifyDate="
            + modifyDate + ", name=" + name + ", sName=" + sName + ", 
occupationLoadingEntities="
            + occupationLoadingEntities + "]";
}


}

那为什么调用save（）和之前，必须手动分配此类的ID。缺少所需的请求正文错误来了？

http：// localhost：8095 / occupation / add的Http失败响应：500 OK

0 个答案: