Question

亲爱的春天Java专业人士

请帮我解决这个问题：我在春天有一个自定义服务，当我运行它时，我的wildfly服务器上没有任何错误。但是，当我执行以下更新请求时，虽然我发送了我的控制器中指定的格式

，但我收到400错误请求

在我的控制器内：

@RequestMapping(value = "/user/updatefilters/{Id}", method = RequestMethod.POST)
    public Response updateFilter(@PathVariable("Id") Long Id, @RequestBody @Valid Filter Filter) {

        FilterService.updateFilter(Id, Filter);

        HashMap<String, Object> response = new HashMap<>();
        response.put("messages", null);
        response.put("success", Boolean.valueOf(true));
        return Response.instance().friendlyName("filter-updated").object(response).statusCode(HttpStatus.OK);
}

在我的服务文件中：

public void updateFilter(Long Id,Filter Filter) {
    List<Filter> currentFilter = FilterRepo.getFilters(Id, Filter.getFilterId().longValue(),null);
    currentFilter.get(0).setLabel(Filter.getLabel());
    FilterRepo.save(currentFilter.get(0));

    for (FilterField FilterField : Filter.getFilterFields()) {
        FilterField currentFilterField = FilterFieldRepo.getFilterField(FilterField.getfieldId());
        if (currentFilterField != null) {
            currentFilterField.setfield(FilterField.getfield());
            currentFilterField.setTypeId(FilterField.getTypeId());
            FilterFieldRepo.save(currentFilterField);
        }           
    }   
}

在我的存储库中：

public List<Filter> getFilterList(Long Id, String type) {
    List<Filter> FilterField = FilterFieldRepo.getFilterFields(Id,type);
    return FilterField;
}   

public void updateFilter(Long Id,Filter Filter) {
    List<Filter> currentFilter = FilterRepo.getFilters(Id, Filter.getFilterId().longValue(),null);
    currentFilter.get(0).setLabel(Filter.getLabel());
    FilterRepo.save(currentFilter.get(0));

    for (FilterField FilterField : Filter.getFilterFields()) {
        FilterField currentFilterField = FilterFieldRepo.getFilterField(FilterField.getfieldId());
        if (currentFilterField != null) {
            currentFilterField.setfield(FilterField.getfield());
            currentFilterField.setTypeId(FilterField.getTypeId());
            FilterFieldRepo.save(currentFilterField);
        }           
    }   
}

请注意，在我的实体内部，我添加了一个这样的暂时列表：

@Transient
private List<FilterField> filterFields;

更新：这是我的Filter类，我在netbeans中生成了crud但是手动添加了transuent列表：

@Entity
@Table(schema="hitmeister",name = "filters")
@NamedQueries({
    @NamedQuery(name = "Filter.findAll", query = "SELECT s FROM Filter s"),
    @NamedQuery(name = "Filter.findByFilterId", query = "SELECT s FROM Filter s WHERE s.filterId = :filterId"),
    @NamedQuery(name = "Filter.findById", query = "SELECT s FROM Filter s WHERE s.Id = :Id"),
    @NamedQuery(name = "Filter.findByLabel", query = "SELECT s FROM Filter s WHERE s.label = :label"),
    @NamedQuery(name = "Filter.findByInsertionDate", query = "SELECT s FROM Filter s WHERE s.insertionDate = :insertionDate"),
    @NamedQuery(name = "Filter.findByIsActive", query = "SELECT s FROM Filter s WHERE s.isActive = :isActive"),
    @NamedQuery(name = "Filter.findByType", query = "SELECT s FROM Filter s WHERE s.type = :type")})
public class Filter implements Serializable {
    private static final long serialVersionUID = 1L;
    @Id
    @GeneratedValue(strategy = GenerationType.IDENTITY)
    @Basic(optional = false)
    @Column(name = "filter_id")
    private Integer filterId;
    @Basic(optional = false)
    @NotNull
    @Column(name = "id")
    private int Id;
    @Basic(optional = false)
    @NotNull
    @Size(min = 1, max = 500)
    @Column(name = "label")
    private String label;
    @Basic(optional = true)
    @Column(name = "insertion_date")
    @Temporal(TemporalType.TIMESTAMP)
    private Date insertionDate;
    @Column(name = "is_active")
    private Boolean isActive;
    @Basic(optional = false)
    @NotNull
    @Size(min = 1, max = 20)
    @Column(name = "type")
    private String type;

    @Transient
    private List<FilterField> filterFields;

    public Filter() {
    }

    public Filter(Integer filterId) {
        this.filterId = filterId;
    }

    public Filter(Integer filterId, int Id, String label, Date insertionDate, String type) {
        this.filterId = filterId;
        this.Id = Id;
        this.label = label;
        this.insertionDate = insertionDate;
        this.type = type;
    }

    public Integer getFilterId() {
        return filterId;
    }

    public void setFilterId(Integer filterId) {
        this.filterId = filterId;
    }

    public int getId() {
        return Id;
    }

    public void setuserId(int Id) {
        this.userId = userId;
    }

    public String getLabel() {
        return label;
    }

    public void setLabel(String label) {
        this.label = label;
    }

    public Date getInsertionDate() {
        return insertionDate;
    }

    public void setInsertionDate(Date insertionDate) {
        this.insertionDate = insertionDate;
    }

    public Boolean getIsActive() {
        return isActive;
    }

    public void setIsActive(Boolean isActive) {
        this.isActive = isActive;
    }

    public String getType() {
        return type;
    }

    public void setType(String type) {
        this.type = type;
    }
    @Override
    public int hashCode() {
        int hash = 0;
        hash += (filterId != null ? filterId.hashCode() : 0);
        return hash;
    }

    @Override
    public boolean equals(Object object) {
        // TODO: Warning - this method won't work in the case the id fields are not set
        if (!(object instanceof Filter)) {
            return false;
        }
        Filter other = (Filter) object;
        if ((this.filterId == null && other.filterId != null) || (this.filterId != null && !this.filterId.equals(other.filterId))) {
            return false;
        }
        return true;
    }

    @Override
    public String toString() {
        return " Filter #"+ filterId ;
    }

    public List<FilterField> getFilterFields() {
        return filterFields;
    }

    public void setFilterFields(List<FilterField> filterFields) {
        this.filterFields = filterFields;
    }


}

如果您需要我的实体代码，我也可以发布它在此先感谢！

Answer 1

我的第一个建议： （OP尝试过，但是没有用，她正在发送POST请求）

如下所示更改您的地图，我认为您应该没问题。 来自浏览器地址栏的请求是GET请求。

如下所示，当服务器无法理解客户端发送的请求时，会出现HTTP 400，在您的情况下，您正在发送GET，但服务器没有GET，但是对于POST，所以400。

W3C HTTP 400

10.4.1 400错误请求

由于格式错误，服务器无法理解该请求   句法。客户端不应该重复请求   修改

代码修正：

@RequestMapping(value = "/user/updatefilters/{Id}", method = RequestMethod.GET)

我的第二个建议：

我不是Spring专家，但是根据您提供的JSON对象和过滤器映射，您可以尝试我的2美分 - （1。）将userId更改为Id，（2。）将insertionDate设为NULL，而不是空字符串。

确保您的JSON字符串变量与Filter类映射区分大小写，并且它们的值与引用类型兼容。

Answer 2

您的请求格式不是Spring所期望的，或者其中一个Filter验证失败。添加org.springframework.validation.Errors参数并转储值以找出哪些验证失败。

public Response updateFilter(@PathVariable("Id") Long Id, @RequestBody @Valid Filter Filter, Errors filterErrors) {

您可以使用curl或网络监控工具嗅探实际流量，以确保HTTP事务确实是您认为的。

编辑：在你的一条评论中查看了JSON，我认为这将在你的JSON字段名称中变成大写/小写。将“Id”更改为“id”，将“FilterId”更改为“filterId”，或使用Filter和@XmlElement(name = "Id")注释@XmlElement(name = "FilterId")字段。 Java Bean属性名称区分大小写。

编辑2：Filter.setuserId(int Id)也被打破了。您需要一个setId()方法来反序列化bean，并且需要更改方法以便存储传递的参数，而不是仅将userId设置为自身。

java服务400错误请求错误

2 个答案: