1.導包 fastjson-1.2.9.jar 2.springmvc.xml檔案配置 <mvc:annotation-driven> <mvc:message-converters register-defaults="true"> <!-- 配置fastjson支援 supportedMediaTypes：支援的json型別 --> <bean class="com.alibaba.fastjson.support.spring.FastJsonHttpMessageConverter"> <property name="supportedMediaTypes"> <list> <value>text/html;charset=UTF-8</value> <value>text/json;charset=UTF-8</value> <value>application/json;charset=UTF-8</value> </list> </property> <!-- QuoteFieldNames-輸出key時是否使用雙引號,預設為true WriteMapNullValue-是否輸出值為null的欄位,預設為false WriteNullNumberAsZero-數值欄位如果為null,輸出為0,而非null WriteNullListAsEmpty-List欄位如果為null,輸出為[],而非null WriteNullStringAsEmpty-字元型別欄位如果為null,輸出為"",而非null WriteNullBooleanAsFalse-Boolean欄位如果為null,輸出為false,而非null --> <property name="features"> <list> <!-- <value>WriteMapNullValue</value> --> <value>QuoteFieldNames</value> </list> </property> </bean> </mvc:message-converters> </mvc:annotation-driven> 3.controller的操作 只需要配置返回值，在其前面新增@responebody即可。返回值的型別為 map型別 @RequestMapping(path="/showAll2") @ResponseBody publicMap<String , List<Emp>> findALlEmp2(){ List<Emp> empList = new ArrayList<Emp>(); for(int i =0;i<10;i++){ Emp emp = new Emp(); emp.setComm("comm"+i); emp.setDeptno("deptno"+i); emp.setEmpno("empno"+i); emp.setEname("ename"+i); emp.setHiredate("hiredate"+i); emp.setJob("job"+i); emp.setMgr("mgr"+i); emp.setSal("sal"+i); empList.add(emp); } Map<String, List<Emp>> hashMap = new HashMap<String ,List<Emp>>(); hashMap.put("empList", empList); return hashMap; }