A Restful API

@Patavariable @RequestParm @RequestBody@RequestHeader

定义POJO

Order

import java.util.Date;
import java.util.List;
import lombok.AllArgsConstructor;
import lombok.Builder;
import lombok.Data;
import lombok.NoArgsConstructor;
import lombok.extern.slf4j.Slf4j;@Data
@Slf4j 
@Builder
@AllArgsConstructor
@NoArgsConstructor
public class Order {public long orderID;public String orderName;public String des;public Date time;public List<Buyer> buyer;
}

Buyer

import lombok.Data;
@Data
public class Buyer {public String ID;public String name;
}

定义RestfulController

Get API for query

	//@RequestMapping(value="/order/{id}",method=RequestMethod.GET)@GetMapping("/order/{id}")public AjaxResponse getOrder(@PathVariable("id") Long id,@RequestHeader String auth) {log.info("running get car here by " + id +" auth:"+auth);Order order = Order.builder().orderID(id).orderName("TSL").des("Eloon Mask is a superman").build();return AjaxResponse.success(order,"the car belonged");}

running get car here by 1 auth:certification

Post API for add

	@PostMapping("/order")public AjaxResponse saveOrder(@RequestBody Order order) {log.info("Oder:" + order);return AjaxResponse.success(order);}
// or	
//	public AjaxResponse saveOrder(@RequestParam long orderID,
//								  @RequestParam String orderName,
//								  @RequestParam String des,
//								  @DateTimeFormat(pattern="yyyy-MM-dd hh:mm:ss")
//								  @RequestParam Date time) 
//	{
//		log.info("Order time:" + time);
//		return AjaxResponse.success(orderID);
//	}

Put API for update

	@PutMapping("/order")public AjaxResponse updateOrder(@RequestBody Order order) {log.info("Order:"+order);if(order.getOrderID()==0) {return AjaxResponse.parameterError(order, "OrderID should be fill in");}return AjaxResponse.success();}

Delete API for delete

	@DeleteMapping("/order/{id}")public AjaxResponse DeleteOrder(@PathVariable Long id) {log.info("Running deleteOrder ID:"+id);if(id == null) {AjaxResponse.parameterError(id, "ID should be fill in");}return AjaxResponse.success();}

定义AjaxResponse

package com.book.springtest;
import lombok.AllArgsConstructor;
import lombok.Builder;
import lombok.Data;
import lombok.NoArgsConstructor;@Data
@Builder
@AllArgsConstructor
@NoArgsConstructor
public class AjaxResponse {private boolean isOK;private int code;// 200,400,404,500private String message;private Object data;public static AjaxResponse success() {AjaxResponse ajaxResponse = new AjaxResponse();ajaxResponse.setOK(true);ajaxResponse.setCode(200);ajaxResponse.setMessage("This is normal");return ajaxResponse;}public static AjaxResponse success(Object obj) {AjaxResponse ajaxResponse = new AjaxResponse();ajaxResponse.setOK(true);ajaxResponse.setCode(200);ajaxResponse.setMessage("This is normal");ajaxResponse.setData(obj);return ajaxResponse;}public static AjaxResponse success(Object obj,String message) {AjaxResponse ajaxResponse = new AjaxResponse();ajaxResponse.setOK(true);ajaxResponse.setCode(200);ajaxResponse.setMessage(message);ajaxResponse.setData(obj);return ajaxResponse;}public static AjaxResponse parameterError(Object obj,String message) {AjaxResponse ajaxResponse = new AjaxResponse();ajaxResponse.setOK(false);ajaxResponse.setCode(400);ajaxResponse.setMessage(message);ajaxResponse.setData(obj);return ajaxResponse;}	
}