JsonConfig config = new JsonConfig(); config.setIgnoreDefaultExcludes(false); config.setCycleDetectionStrategy(CycleDetectionStrategy.LENIENT); config.registerJsonValueProcessor(Date.class,new DateJsonValueProcessor("yyyy-MM-dd")); //date processor register config.setExcludes(new String[]{//只要设置这个数组，指定过滤哪些字段。 "consignee", "contract", "coalInfo", "coalType", "startStation", "balanceMan", "endStation" }); String tempStr = "{\"TotalRecords\":"+ total.toString() +",\"Datas\":"+JSONSerializer.toJSON(list,config).toString()+"}"; out.print(tempStr); JsonConfig config = new JsonConfig(); config.setIgnoreDefaultExcludes(false); config.setCycleDetectionStrategy(CycleDetectionStrategy.LENIENT); config.registerJsonValueProcessor(Date.class,new DateJsonValueProcessor("yyyy-MM-dd")); //date processor register config.setExcludes(new String[]{//只要设置这个数组，指定过滤哪些字段。 "consignee", "contract", "coalInfo", "coalType", "startStation", "balanceMan", "endStation" }); String tempStr = "{\"TotalRecords\":"+ total.toString() +",\"Datas\":"+JSONSerializer.toJSON(list,config).toString()+"}"; out.print(tempStr); 2.设置JSON-LIB的setCycleDetectionStrategy属性让其自己处理循环，省事但是数据过于复杂的话会引起数据溢出或者效率低下。 Java代码 [code] JsonConfig config = new JsonConfig(); config.setIgnoreDefaultExcludes(false); config.setCycleDetectionStrategy(CycleDetectionStrategy.LENIENT); config.registerJsonValueProcessor(Date.class,new DateJsonValueProcessor("yyyy-MM-dd")); //date processor register String tempStr = "{\"TotalRecords\":"+ total.toString() +",\"Datas\":"+JSONSerializer.toJSON(list,config).toString()+"}"; out.print(tempStr);