Spring 将数据发布到控制器时将请求标记为不正确

Question

控制器设置为空 team 并获取所有 organizations 然后将这 2 个对象传递给 JSP。由于某种原因，表单无法提交数据并导致： 400 The request sent by the client was syntactically incorrect.。 Chrome 显示正在传递的表单数据：

name:Chris Paul Camps
rating:9
organization:com.sprhib.model.Organization@7ebffc91

JSP

 <form:form method="POST" commandName="team" action="${pageContext.request.contextPath}/team/add.html" class="col-md-4">
             <div class="form-group">
                 <label for="name"><spring:message code="label.name"></spring:message>:</label>
                 <form:input class="form-control" path="name" id="name" />
             </div>
            <div class="form-group">
                <label for="rating"><spring:message code="label.rating"></spring:message>:</label>
                <form:input class="form-control" path="rating" id="rating" />
            </div>
            <div class="form-group">
                <label for="organization"><spring:message code="label.organization"></spring:message>:</label>
                <form:select class="form-control" path="organization" id="organization">
                    <form:option value="" label="- Select -"/>
                    <form:options items="${organizations}" itemLabel="name" />
                </form:select>
            </div>
            <input type="submit" value="<spring:message code="label.add"></spring:message>" class="btn btn-default"/>
        </form:form>

控制器

@RequestMapping(value="/add", method=RequestMethod.GET)
    public ModelAndView addTeamPage() {
        ModelAndView modelAndView = new ModelAndView("teams/add-team-form");
        modelAndView.addObject("team", new Team());
        modelAndView.addObject("organizations", organizationService.getOrganizations());

        return modelAndView;
    }

    @RequestMapping(value="/add", method=RequestMethod.POST)
    public ModelAndView addingTeam(@ModelAttribute Team team) {
        ModelAndView modelAndView = new ModelAndView("home");
        teamService.addTeam(team);
        String message = "Team was successfully added.";
        modelAndView.addObject("message", message);
        return modelAndView;
    }

团队实体：

@Entity
@Table(name="teams")
public class Team {


    private Integer id;

    private String name;

    private Integer rating;

    private Set<Member> members;

    private Organization organization;

    @Id
    @GeneratedValue
    public Integer getId() {
        return id;
    }
    public void setId(Integer id) {
        this.id = id;
    }
    public String getName() {
        return name;
    }
    public void setName(String name) {
        this.name = name;
    }
    public Integer getRating() {
        return rating;
    }
    public void setRating(Integer rating) {
        this.rating = rating;
    }

    @ManyToOne(fetch = FetchType.EAGER)
    @JoinColumn(name = "FK_Organization_id", nullable = false)
    public Organization getOrganization() {
        return organization;
    }

    public void setOrganization(Organization organization) {
        this.organization = organization;
    }

    @ManyToMany(fetch = FetchType.EAGER, cascade = CascadeType.ALL)
    @JoinTable(name = "team_member", joinColumns =
    @JoinColumn(name = "FK_Team_id", referencedColumnName= "id"),
            inverseJoinColumns = @JoinColumn(name = "FK_Member_id", referencedColumnName = "id")
    )
    public Set<Member> getMembers() {
        return members;
    }

    public void setMembers(Set<Member> members) {
        this.members = members;
    }

}

组织实体：

@Entity
@Table(name = "organization")
public class Organization {

    private Integer id;

    private String name;

    private Set<Team> teams;

    @Id
    @GeneratedValue
    public Integer getId() {
        return id;
    }

    public void setId(Integer id) {
        this.id = id;
    }

    public String getName() {
        return name;
    }

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

    @OneToMany(fetch = FetchType.EAGER, mappedBy = "organization")
    public Set<Team> getTeams() {
        return teams;
    }

    public void setTeams(Set<Team> teams) {
        this.teams = teams;
    }
}

更新：

改成这个后还是一样的错误：

<form:select class="form-control" path="organization" id="organization">
                    <form:option value="" label="- Select -"/>
                    <form:options items="${organizations}" itemLabel="name" itemValue="id"/>
                </form:select>

我是否必须在控制器中有两个 @ModelAttribute，一个用于团队，另一个用于组织？

更新2：

为什么 organization 显示为 null 出现此错误：nested exception is org.hibernate.PropertyValueException: not-null property references a null or transient value: com.sprhib.model.Team.organization?

Answer 1

尝试将您的控制器方法更改为

@RequestMapping(value="/add", method=RequestMethod.POST)
public ModelAndView addingTeam(@ModelAttribute Team team,  BindingResult result) {

您很可能有绑定错误，但是由于在您的控制器中您没有紧跟在 @ModelAttribute[= 之后的 BindingResult 33=] 你收到一个错误的请求

检查 docs 是否存在 BindingResult 和 @ModelAttribute 的无效排序。

The Errors or BindingResult parameters have to follow the model object that is being bound immediately as the method signature might have more that one model

我认为通过添加 BindingResult，您将更深入地了解失败的确切属性

评论后更新

您还需要注册一个活页夹来转换您的组织，大致类似于

@InitBinder public void initBinder(WebDataBinder binder) { binder.registerCustomEditor(Organization.class, new PropertyEditorSupport() { @Override public void setAsText(String text) { Organization organization = dao.find(Organization.class, Integer.parseInt(text)); setValue(organization); } }); }

dao.find(Organization.class, Integer.parseInt(text));当然是元代码

Spring 将数据发布到控制器时将请求标记为不正确

Spring marks request as incorrect while posting data to controller

java

jsp

spring-mvc