iteye_16248
iteye_16248
2008-06-19 13:58

用json时的一个问题,

  • jquery

假设有一个Person类,
[code="java"]
public class Person{
private java.util.Date birthday;

 // settor and gettor methods.....

}
[/code]

现在客户端那边传来如下的json规则的字符串String personJson = "{birthday:\"06/28/2008 17:00:00\"}",要用

JSONOjbect.toBean(JSONObject.from(personJson ),Person.class)方法来获得相应的Person实例时就出问题了,报错如下:
[code="java"]
2008-6-19 13:57:39 net.sf.json.JSONObject morphPropertyValue
警告: Can't transform property 'birthday' from java.lang.String into java.util.Date. Will register a default Morpher
2008-6-19 13:57:39 net.sf.ezmorph.bean.BeanMorpher morph
信息: Property 'java.util.Date.class' has no write method. SKIPPED.
2008-6-19 13:57:39 net.sf.ezmorph.bean.BeanMorpher morph
警告: Property 'java.lang.String.date' does not exist. SKIPPED.
2008-6-19 13:57:39 net.sf.ezmorph.bean.BeanMorpher morph
信息: Property 'java.util.Date.day' has no write method. SKIPPED.
2008-6-19 13:57:39 net.sf.ezmorph.bean.BeanMorpher morph
警告: Property 'java.lang.String.hours' does not exist. SKIPPED.
2008-6-19 13:57:39 net.sf.ezmorph.bean.BeanMorpher morph
警告: Property 'java.lang.String.minutes' does not exist. SKIPPED.
2008-6-19 13:57:39 net.sf.ezmorph.bean.BeanMorpher morph
警告: Property 'java.lang.String.month' does not exist. SKIPPED.
2008-6-19 13:57:39 net.sf.ezmorph.bean.BeanMorpher morph
警告: Property 'java.lang.String.seconds' does not exist. SKIPPED.
2008-6-19 13:57:39 net.sf.ezmorph.bean.BeanMorpher morph
警告: Property 'java.lang.String.time' does not exist. SKIPPED.
2008-6-19 13:57:39 net.sf.ezmorph.bean.BeanMorpher morph
信息: Property 'java.util.Date.timezoneOffset' has no write method. SKIPPED.
2008-6-19 13:57:39 net.sf.ezmorph.bean.BeanMorpher morph
警告: Property 'java.lang.String.year' does not exist. SKIPPED.
Person's brithday: Thu Jun 19 13:57:39 CST 2008

[/code]

这个怎么解决?

以下是我做实验用的Java代码:

[code="java"]
package json;

import java.util.Date;

import net.sf.json.JSONObject;

public class Person {
private Date birthday;

public Date getBirthday() {
    return birthday;
}

public void setBirthday(Date birthday) {
    this.birthday = birthday;
}

public static Person getInstance(String jsonVale) {
    return (Person)JSONObject.toBean(JSONObject.fromObject(jsonVale),Person.class);
}

public static void main(String[] args) {
    String personJson = "{birthday:\"06/28/2008 17:00:00\"}";

    Person p = getInstance(personJson);

    System.out.println("Person's brithday: "+ p.getBirthday());
}

}

[/code]

[b]问题补充:[/b]
To ham:
你所说的那个方案是针对 bean --> Json的,而现在的问题是从Json到Bean.
[b]问题补充:[/b]
多谢各位的帮忙,现在这个问题解决了,也就是在toBean前加一句话:JSONUtils.getMorpherRegistry().registerMorpher(new DateMorpher(new String[] {"MM/dd/yyyy HH:mm:ss"}) );来配置记下Date转化时的Morpher就OK了,大家有兴趣的话可以试下.

Thanks a lot!

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