Java后台JOSN转换为Stirng

jackson-mapper-asl-1.6.4.jar

import org.codehaus.jackson.map.ObjectMapper;

public static String convertObjectToJsonString(Object data){
return convertObjectToJsonString(null,data);
}
public static String convertObjectToJsonString(ObjectMapper mapper,Object data){
String json = “”;
if(data==null) return json;
try {
if(mapper==null) mapper = new ObjectMapper();