如何将URI字符串转换为弹簧中的复杂对象类型
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28-09-2019 - |
题
我只是想知道,我可以将URI字符串转换为另一种对象类型吗?
@RequestMapping(value="/key/{keyDomain}", method=RequestMethod.GET)
public String propertyEditor(@PathVariable(value="keyDomain") KeyDomain key, Model model){
model.addAttribute("key", key);
return "propertyEditor";
}
在这里我的配置
<beans:bean id="customEditorConfigurer" class="org.springframework.beans.factory.config.CustomEditorConfigurer">
<beans:property name="customEditors">
<beans:map>
<!-- <beans:entry key="com.template.baseline.domain.KeyDomain" value="com.template.baseline.propertyEditor.KeyPropertyEditor"/> -->
<beans:entry key="com.template.baseline.domain.KeyDomain">
<beans:ref bean="keyDomainPropertyEditor" />
</beans:entry>
</beans:map>
</beans:property>
</beans:bean>
<!-- key domain property editor bean -->
<beans:bean id="keyDomainPropertyEditor" class="com.template.baseline.propertyEditor.KeyPropertyEditor">
<beans:property name="keyDomain">
<beans:bean class="com.template.baseline.domain.KeyDomain" />
</beans:property>
</beans:bean>
和ProperityEditor类:
public class KeyPropertyEditor extends PropertyEditorSupport{
private KeyDomain keyDomain;
/**
* example : 10435
* - 10 will be keyId
* - 435 will be baseOfficeId
*/
@Override
public void setAsText(String text) throws IllegalArgumentException{
KeyDomain keyDomain = new KeyDomain();
keyDomain.setKeyId(Integer.parseInt(text.substring(0,1)));
keyDomain.setBaseOfficeId(Integer.parseInt(text.substring(2,4)));
setValue(keyDomain);
}
@Override
public String getAsText() {
KeyDomain value = (KeyDomain) getValue();
return (value != null ? value.toString() : "");
}
public void setKeyDomain(KeyDomain keyDomain) {
this.keyDomain = keyDomain;
}
}
我认为我可以使用属性编辑器将我的URI字符串变为适当的对象类型。我已经进行了实现并配置CustomEditorConfigurer,但是我总是得到ConversionNotsupportedException。
如果我在控制器上添加initbinder,一切都会好起来的:
@InitBinder
public void setBinder(WebDataBinder dataBinder) {
dataBinder.registerCustomEditor(KeyDomain.class, new KeyPropertyEditor());
}
我得到这样的警告
warn:org.springframework.beans.factory.config.customeditorconfigurer-将propertyEditor实例传递到customeditorconfigurer中:使用propertyeditoregrigrars或PropertyEditor类名称。犯有键[com.template.baseline.domain.keydomain;违规编辑器实例:com.template.baseline.propertyeditor.keypropertyeditor@1a271f5
感谢你的回答。
PS:注入AnnotationMethodHandlerAdlerAdapter上
<beans:bean id="AnnotationMethodHandlerAdapter" class="org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter">
<beans:property name="webBindingInitializer">
<beans:bean class="com.template.baseline.initialize.CustomWebBindingInitializer" />
</beans:property>
</beans:bean>
和实施
public class CustomWebBindingInitializer implements WebBindingInitializer {
public CustomWebBindingInitializer(){
System.out.println("******** constructor *********");
}
public void initBinder(WebDataBinder binder, WebRequest request) {
System.out.println("******** initBinder *********");
binder.registerCustomEditor(KeyDomain.class, new KeyDomainPropertyEditor());
}
}
解决方案
CustomEditorConfigurer
与Web请求数据绑定无关。
如果您想注册您的 PropertyEditor
全球,您需要实施 WebBindingInitializer
和供应 AnnotationMethodHandlerAdapter
用它:
<bean
class = "org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter">
<proeprty name = "webBindingInitializer">
<bean class = "MyWebBindingInitializer" />
</property>
</bean>
另一个选择是将您的转换逻辑实现为 Formatter
并通过 FormattingConversionServiceFactoryBean
和 <mvc:annotation-driven>
, , 看 MVC-Showcase样本.