我在Spring-MVC应用程序中使用Objectify 5.1.7和Objectify Spring extension。Objectify抛出IllegalArgumentException:没有注册类'com.app.db.client.model.ProductType'
这里是我的实体类:
Product.java
@Entity
public class Product extends RelatedDataObject {
@Parent
private Ref<Vendor> vendor;
@Load
private Ref<ProductCategory> productCategory;
@Load
private Ref<ProductType> productType;
@Index
private String nativeId;
private Double costPrice;
private String modelId;
private String serviceLocations;
private Map<String, String> attributes;
public Double getCostPrice() {
return costPrice;
}
public String getModelId() {
return modelId;
}
public String getServiceLocations() {
return serviceLocations;
}
public Map<String, String> getAttributes() {
return attributes;
}
public void setCostPrice(Double costPrice) {
this.costPrice = costPrice;
}
public void setModelId(String modelId) {
this.modelId = modelId;
}
public void setServiceLocations(String serviceLocations) {
this.serviceLocations = serviceLocations;
}
public void setAttributes(Map<String, String> attributes) {
this.attributes = attributes;
}
public void addAttribute(String key, String value) {
if(key == null || value == null) {
throw new IllegalArgumentException("Key or value is null.");
}
if(attributes == null) {
attributes = new HashMap<String, String>();
}
attributes.put(key, value);
}
public ProductCategory getProductCategory() {
return productCategory.get();
}
public ProductType getProductType() {
return productType.get();
}
public String getNativeId() {
return nativeId;
}
public void setNativeId(String nativeId) {
this.nativeId = nativeId;
}
public void setProductCategory(ProductCategory productCategory) {
this.productCategory = Ref.create(productCategory);
}
public void setProductType(ProductType productType) {
this.productType = Ref.create(productType);
}
public Vendor getVendor() {
return vendor.get();
}
public void setVendor(Vendor vendor) {
this.vendor = Ref.create(vendor);
}
public Key<Product> getKeyByParentVendor() {
if (getId() == null) {
throw new IllegalArgumentException("Product id is not set.");
}
if (vendor == null) {
throw new IllegalArgumentException("Parent vendor is not set.");
}
return Key.create(this.vendor.key(), Product.class, getId());
}
}
ProductType.java
@Entity
public class ProductType extends RelatedDataObject {
}
RelatedDataObject.java
public class RelatedDataObject extends DataObject {
private String description;
private boolean approved;
public RelatedDataObject() {
super();
approved = false;
}
public String getDescription() {
return description;
}
public void setDescription(String description) {
this.description = description;
}
public boolean isApproved() {
return approved;
}
public void setApproved(boolean approved) {
this.approved = approved;
}
}
DataObject.java
public class DataObject {
@Id
private String id;
@Index
private String name;
private boolean inactive;
public DataObject() {
super();
inactive = false;
}
public String getId() {
return id;
}
public String getName() {
return name;
}
public void setId(String id) {
this.id = id;
}
public void setName(String name) {
this.name = name;
}
public boolean isInactive() {
return inactive;
}
public void setInactive(boolean inactive) {
this.inactive = inactive;
}
}
这里是我的spring bean xml配置。我所有的实体类的包里面:com.app.db.client.client.model
<bean id="objectifyFactory" class="com.googlecode.objectify.spring.ObjectifyFactoryBean">
<property name="basePackage" value="com.app.db.client.model"/>
</bean>
<bean id="dbClient" class="com.app.db.client.impl.DbClientImpl">
<property name="objectifyFactory" ref="objectifyFactory"/>
</bean>
DBClientImpl.java
public class DbClientImpl implements DbClient {
private ObjectifyFactory objectifyFactory;
public void setObjectifyFactory(ObjectifyFactory objectifyFactory) {
this.objectifyFactory = objectifyFactory;
}
@Override
public <T extends DataObject> void createObject(T object) {
Objectify ofy = objectifyFactory.begin();
ofy.save().entity(object).now();
}
}
当GAE devserver靴子我的春天MVC应用程序,所有的实体类被加载。下面是日志消息:
[INFO] 2015-09-10 13:20:15 INFO ObjectifyFactoryBean:115 - Registered entity class [com.app.db.client.model.Product]
[INFO] 2015-09-10 13:20:15 INFO ObjectifyFactoryBean:115 - Registered entity class [com.app.db.client.model.ProductCategory]
[INFO] 2015-09-10 13:20:15 INFO ObjectifyFactoryBean:115 - Registered entity class [com.app.db.client.model.ProductType]
[INFO] 2015-09-10 13:20:15 INFO ObjectifyFactoryBean:115 - Registered entity class [com.app.db.client.model.Vendor]
当我试图保存产品实体:
Product product = new Product();
product.setName("new product");
product.setProductType(productType);
product.setProductCategory(productCategory);
product.setNativeId(productNativeId);
product.setCostPrice(createProductParam.getCostPrice());
dbclient.createObject(product);
我从客体得到这个错误:
[INFO] java.lang.IllegalArgumentException: No class 'com.app.db.client.model.ProductType' was registered
[INFO] at com.googlecode.objectify.impl.Registrar.getMetadataSafe(Registrar.java:120)
[INFO] at com.googlecode.objectify.impl.Keys.getMetadataSafe(Keys.java:53)
[INFO] at com.googlecode.objectify.impl.Keys.getMetadataSafe(Keys.java:62)
[INFO] at com.googlecode.objectify.impl.Keys.rawKeyOf(Keys.java:36)
[INFO] at com.googlecode.objectify.impl.Keys.keyOf(Keys.java:29)
[INFO] at com.googlecode.objectify.Key.create(Key.java:62)
[INFO] at com.googlecode.objectify.Ref.create(Ref.java:31)
[INFO] at com.app.db.client.model.Product.setProductType(Product.java:93)
请帮我解决这个问题。
它适用于具有简单属性的实体。产品实体发生此问题,其中它具有对其他实体的引用(Ref)。 – Amit