springMVC自定义属性编辑器-转

自定义springMVC的属性编辑器主要有两种方式，一种是使用@InitBinder标签在运行期注册一个属性编辑器，这种编辑器只在当前Controller里面有效；还有一种是实现自己的 WebBindingInitializer，然后定义一个 AnnotationMethodHandlerAdapter的bean，在此bean里面进行注册 ，这种属性编辑器是全局的。

 

第一种方式：

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//必须有一个参数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));
            }

        });
    }


}

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//必须有一个参数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));
			}
			
		});
	}
	
	
}

  这种方式这样写了就可以了

 

 

 

第二种：

 

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));
    }

}

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一个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>

<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>

 第二种方式经过上面两步就可以定义一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。这时候第二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。

                                                转自iteye-234390216用户，http://haohaoxuexi.iteye.com/blog/1190065。