JSON与XML两者目前在数据交互方面都有很高的使用率,随着现在SOA的兴起,异构系统的整合地位相应提高,本篇文章主要介绍JSON与JAVA对象之间的相互转换。一、对普通类型的JSON模式的转换一般JSON为最普通的String类型组成,没有其它Data或Object等这种特殊类形,具体例子如下:JSON:jsonString = {"name":"jack","sex":"men","age":23};JAVA BEAN:public class Person{private String name;private String sex;private Integer age;...omit get or set method...}现在如果我们想把上面的JSON格式转为Java bean类,常用方法为:jsonObject = JSONObject.fromObject(jsonString);Object results = JSONObject.toBean(jsonObject, Person.class);这样返回来的数据就为Person类型的实例,在JSONObject.toBean();的方法签名中第一个参数为jsonObject对象,第二个参数为要转换后的JAVA BEAN的class类。二、对有Date或List类型的转换JSON:jsonString = {"name":"jack","sex":"women","birthday":"2010-06-12","address":[{"officeAttr":"NEWS RORK","HomeAttr":"beijing"},{"officeAttr":"taiyuan","HomeAttr":"hongkong"}]};JAVA BEAN:public class Person{private String name;private String sex;private Date birthday;private List<Address> address;...omit get or set method...}public class Address{private String officeAttr;private String homeAttr;...omit get or set method...}现在如果我们想把上面的JSON格式转为Java bean类,常用方法为:JSONUtils.getMorpherRegistry().registerMorpher(new JsonDateValueProcessor(new String[] { "yyyy-MM-dd","yyyy-MM-dd HH:mm:ss" }));Map<String,Class> map = new HashMap<String,Class>();map.put("address",Address.class); //map中的key值为json中list的key值,value为Address的class类对象jsonObject = JSONObject.fromObject(jsonString);Object results = JSONObject.toBean(jsonObject, Person.class, map);public class JsonDateValueProcessor implements JsonValueProcessor {private String format = "yyyy-MM-dd HH:mm:ss";public JsonDateValueProcessor() {}public JsonDateValueProcessor(String format) {this.format = format;}public Object processArrayValue(Object value, JsonConfig jsonConfig) {return process(value, jsonConfig);}public Object processObjectValue(String key, Object value, JsonConfig jsonConfig) {return process(value, jsonConfig);}private Object process( Object value, JsonConfig jsonConfig ) {if (value instanceof Date) {String str = new SimpleDateFormat(format).format((Date) value);return str;}return value == null ? null : value.toString();}public String getFormat() {return format;}public void setFormat(String format) {this.format = format;}}JSON与XML两者目前在数据交互方面都有很高的使用率,随着现在SOA的兴起,异构系统的整合地 你的当前访问异常,请进行认证后继续阅读剩余内容。 提交