使用XStream实现javaBean和xml互转之-----javaBean转xml无格式化

public static XStream getXstream() {

        return new XStream(new DomDriver("utf-8",new NoNameCoder())){
            @Override
            protected MapperWrapper wrapMapper(MapperWrapper next) {
                return new MapperWrapper(next) {
                    @Override
                    public boolean shouldSerializeMember(Class definedIn, String fieldName) {
                        if (definedIn == Object.class) {
                            try {
                                return this.realClass(fieldName) != null;
                            } catch (Exception e) {
                                return false;
                            }
                        } else
                            return super.shouldSerializeMember(definedIn,
                                    fieldName);
                    }
                };
            }
        };

    }

    public static String obj2xmlByXStream(Object obj) {
        XStream xst = getXstream();
        xst.processAnnotations(obj.getClass());
        /**
         * 之所以使用下面这种方式生成xml，是因为，默认的toXML()转换后的xml有格式（包含换行符），有格式的xml参与加密会产生许多不必要的问题
         * 而下面这种方式转换的xml没有格式
         */
        StringWriter writer = new StringWriter();
        xst.marshal(obj,new CompactWriter(writer));
        return writer.toString();
    }

    public static <T> T xml2objByXStream(String xml, Class<T> tClass) {
        XStream xst = getXstream();
        xst.processAnnotations(tClass);
        return (T) xst.fromXML(xml);
    }