在我的页面类中:
public SelectModel getCountryListEnum() {
return new EnumSelectModel(CountryListEnum.class, resources.getMessages());
}
public CountryListEnumEncoder getCountryListEnumEncoder(){
return new CountryListEnumEncoder();
}
在我的模板中(select.selectcountries 扩展 Tapestry 选择组件顺便说一句):
<t:select.selectcountries id="country" t:id="country" model="CountryListEnum" value="user.address.countrycode" encoder="CountryListEnumEncoder"/>
我的枚举:
public enum CountryListEnum {
AFGHANISTAN("Afghanistan", "AF"),
ALBANIA("Albania", "AL"),
ALGERIA("Algeria", "DZ"),
(...ETC);
private String country;
private String code;
private CountryListEnum( String country, String code) {
this.country = country;
this.code = code;
}
public String getCountry() {
return country;
}
public void setCountry(String country) {
this.country = country;
}
public String getId() {
return getCode();
}
public String getCode() {
return code;
}
public void setCode(String code) {
this.code = code;
}
private CountryListEnum() {
}
public static int getSize() {
return values().length;
}
public static String getNameFromCode(String code) {
for (CountryListEnum countryEnum : values()) {
if (code.trim().equals(countryEnum.getCode())) {
return countryEnum.getCountry();
}
}
throw new IllegalArgumentException("Country Code: "+ code + " does not exist");
}
}
我的价值编码器:
public class CountryListEnumEncoder implements ValueEncoder<CountryListEnum>, ValueEncoderFactory<CountryListEnum> {
@Override
public String toClient(CountryListEnum value) {
return value.getId();
}
@Override
public CountryListEnum toValue(String clientValue) {
Validate.notEmpty(clientValue);
for (CountryListEnum countryEnum : CountryListEnum.values()) {
if (clientValue.trim().equals(countryEnum.getCode())) {
return countryEnum;
}
}
throw new IllegalArgumentException("Country Code: " + clientValue + " does not exist");
}
@Override
public ValueEncoder<CountryListEnum> create(Class<CountryListEnum> type) {
return this; //To change body of implemented methods use File | Settings | File Templates.
}
}
最后,我收到以下错误:
java.lang.String 不能转换为 com.starpoint.instihire.api.domain.reference.CountryListEnum
我尝试提交类型强制器(如此处所建议),但这也不起作用。我还尝试从 select 中省略模型参数,并将 select.selectcountries 组件的 id 更改为 countryListEnum (如此处建议)。在这个问题上抓挠我的头......