自定义springMVC的属性编辑器主要有两种方式,1种是使用@InitBinder标签在运行期注册1个属性编辑器,这类编辑器只在当前Controller里面有效;还有1种是实现自己的 WebBindingInitializer,然后定义1个
AnnotationMethodHandlerAdapter的bean,在此bean里面进行注册
,这类属性编辑器是全局的。
第1种方式:
- import java.beans.PropertyEditorSupport;
- import java.io.IOException;
- import java.text.SimpleDateFormat;
- import java.util.Date;
- import javax.servlet.http.HttpServletResponse;
- import org.springframework.beans.propertyeditors.CustomDateEditor;
- import org.springframework.stereotype.Controller;
- import org.springframework.web.bind.WebDataBinder;
- import org.springframework.web.bind.annotation.InitBinder;
- import org.springframework.web.bind.annotation.PathVariable;
- import org.springframework.web.bind.annotation.RequestMapping;
- @Controller
- public class GlobalController {
- @RequestMapping("test/{date}")
- public void test(@PathVariable Date date, HttpServletResponse response) throws IOException
- response.getWriter().write( date);
- }
- @InitBinder//必须有1个参数WebDataBinder
- public void initBinder(WebDataBinder binder) {
- binder.registerCustomEditor(Date.class, new CustomDateEditor(new SimpleDateFormat("yyyy-MM-dd"), false));
- binder.registerCustomEditor(int.class, new PropertyEditorSupport() {
- @Override
- public String getAsText() {
- // TODO Auto-generated method stub
- return getValue().toString();
- }
- @Override
- public void setAsText(String text) throws IllegalArgumentException {
- // TODO Auto-generated method stub
- System.out.println(text + "...........................................");
- setValue(Integer.parseInt(text));
- }
- });
- }
- }
这类方式这样写了就能够了
第2种:
1.定义自己的WebBindingInitializer
- package com.xxx.blog.util;
- import java.util.Date;
- import java.text.SimpleDateFormat;
- import org.springframework.beans.propertyeditors.CustomDateEditor;
- import org.springframework.web.bind.WebDataBinder;
- import org.springframework.web.bind.support.WebBindingInitializer;
- import org.springframework.web.context.request.WebRequest;
- public class MyWebBindingInitializer implements WebBindingInitializer {
- @Override
- public void initBinder(WebDataBinder binder, WebRequest request) {
- // TODO Auto-generated method stub
- binder.registerCustomEditor(Date.class, new CustomDateEditor(new SimpleDateFormat("yyyy-MM-dd"), false));
- }
- }
2.在springMVC的配置文件里面定义1个AnnotationMethodHandlerAdapter,并设置其WebBindingInitializer属性为我们自己定义的WebBindingInitializer对象
- <bean class="org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter">
- <property name="cacheSeconds" value="0"/>
- <property name="webBindingInitializer">
- <bean class="com.xxx.blog.util.MyWebBindingInitializer"/>
- </property>
- </bean>
第2种方式经过上面两步就能够定义1个全局的属性编辑器了。
注意:当使用了<mvc:annotation-driven />的时候,它 会自动注册DefaultAnnotationHandlerMapping与AnnotationMethodHandlerAdapter 两个bean。这时候候第2种方式指定的全局属性编辑器就不会起作用了,解决办法就是手动的添加上述bean,并把它们加在<mvc:annotation-driven/>的前面。