NotReadablePropertyException Bean 属性不可读或具有无效的 getter 方法

Question

有错误：org.springframework.beans.NotReadablePropertyException: Invalid property 'organizations' of bean class [com.sprhib.model.Team]: Bean property 'organizations' is not readable or has an invalid getter method: Does the return type of the getter match the parameter type of the setter?

有表格：团队、组织。存在一对多关系。

团队模型

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

    private Organization organization;

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

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

组织

@Entity
@Table(name = "organization")
public class Organization {
    private Set<Team> teams;

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

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

JSP

<form:form method="POST" commandName="team" action="${pageContext.request.contextPath}/team/add.html">    
     <form:select path="organizations">
         <form:option value="${organization}">
             <c:out value="${organization.name}"/>
         </form:option>
     </form:select>
</form:form>

如何spring让所有组织JSP？

更新：

我使用控制器将所有组织和新团队对象的列表传递给jsp：

@Controller
@RequestMapping(value="/team")
public class TeamController {

    @Autowired
    private TeamService teamService;

    @Autowired
    private OrganizationService organizationService;

    @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;
    }

更新 2：

commandName="team" 是否限制使用超过 1 个模型属性，在本例中有两个：organizations 和 team？如何让它发挥作用？

Custom attribute name: commandName Description: Name of the model attribute under which the form object is exposed. Defaults to 'command'. Required: false Can have runtime value: true

Answer 1

<form:option> 用于将单个选项附加到 select 列表。您可以使用 <form:options>"

添加集合中的所有元素

<form:select path="organization">
    <form:options items="${organizations}" />
</form:select>

您也可以同时使用两者，例如添加默认的未selected 选项：

<form:select path="organization">
    <form:option value="" label="- Select -"/>
    <form:options items="${organizations}" />
</form:select>

将被 selected 的值将在通过表单传递的 Team bean 中结束； path 属性用于确定将在团队中设置哪个属性，在这种情况下它是 organisation（不是组织）

NotReadablePropertyException Bean 属性不可读或具有无效的 getter 方法

NotReadablePropertyException Bean property is not readable or has an invalid getter method

java

spring

jsp

spring-form

NotReadablePropertyException Bean 属性 不可读或具有无效的 getter 方法

NotReadablePropertyException Bean property is not readable or has an invalid getter method

java

spring

jsp

spring-form

NotReadablePropertyException Bean 属性不可读或具有无效的 getter 方法