1、引入依赖包:
<dependency> <groupId>net.sf.json-lib</groupId> <artifactId>json-lib</artifactId> <version>2.4</version> <classifier>jdk15</classifier> </dependency> <dependency> <groupId>commons-beanutils</groupId> <artifactId>commons-beanutils</artifactId> <version>1.7.0</version> </dependency> <dependency> <groupId>commons-collections</groupId> <artifactId>commons-collections</artifactId> <version>3.1</version> </dependency> <dependency> <groupId>commons-lang</groupId> <artifactId>commons-lang</artifactId> <version>2.5</version> </dependency> <dependency> <groupId>net.sf.ezmorph</groupId> <artifactId>ezmorph</artifactId> <version>1.0.3</version> </dependency> <dependency> <groupId>commons-logging</groupId> <artifactId>commons-logging</artifactId> <version>1.2</version> </dependency>
2、创建日期处理器类
public class JsonDateValueProcessor implements JsonValueProcessor {
private String format = "yyyy-MM-dd HH:mm:ss";
public JsonDateValueProcessor() {
super();
}
public JsonDateValueProcessor(String format) { // 自己需要的格式
super();
this.format = format;
}
@Override
public Object processArrayValue(Object value, JsonConfig paramJsonConfig) {
return process(value);
}
@Override
public Object processObjectValue(String key, Object value, JsonConfig paramJsonConfig) {
return process(value);
}
private Object process(Object value) {
if (value instanceof Date) {
SimpleDateFormat sdf = new SimpleDateFormat(format, Locale.CHINA);
return sdf.format(value);
}
return value == null ? "" : value.toString();
}
}
3、使用方式
- 单个bean
JsonConfig jsonConfig = new JsonConfig();
jsonConfig.registerJsonValueProcessor(Date.class, new JsonDateValueProcessor());
JSONObject json = new JSONObject();
json.fromObject(object, jsonConfig)
- List<bean>
List<Object> objects = new ArrayList<>();
JsonConfig jsonConfig = new JsonConfig();
jsonConfig.registerJsonValueProcessor(Date.class, new JsonDateValueProcessor());
JSONArray taskArray = JSONArray.fromObject(objects, jsonConfig);
- Map
JsonConfig jsonConfig = new JsonConfig();
jsonConfig.registerJsonValueProcessor(Date.class, new JsonDateValueProcessor());
JSONObject json = new JSONObject();
json.putAll(Map, jsonConfig);