springMVC远程接口开发

灰太狼 2022-03-12 07:23 219阅读 0赞

import java.io.IOException;
    import java.io.PrintWriter;
    import java.math.BigDecimal;
    import java.util.List;
    
    import javax.annotation.Resource;
    import javax.servlet.http.HttpServletRequest;
    import javax.servlet.http.HttpServletResponse;
    
    import org.slf4j.Logger;
    import org.slf4j.LoggerFactory;
    import org.springframework.stereotype.Controller;
    import org.springframework.web.bind.annotation.RequestMapping;
    
    import com.alibaba.fastjson.JSONObject;
    
    
    /**
     * 安卓端订单管理
     * 
     * @author CNZZ
     *
     */
    @Controller
    @RequestMapping("/AndroidOrderManage")
    public class AndroidOrderManageController {
    	private static Logger log = LoggerFactory
    			.getLogger(AndroidOrderManageController.class);
    
    	@Resource
    	AndroidOrderManageService androidOrderManageService;
    
    
    	/**
    	 * 安卓端订单创建
    	 * 
    	 * @param request
    	 * @param response
    	 * @return
    	 * @throws Exception
    	 */
    	@RequestMapping("/createOrder")
    	public void createOrder(HttpServletRequest request,
    			HttpServletResponse response) throws Exception {
    		JSONObject jsonObject = new JSONObject();
    
    		try {
    			// 1.入参打印
    			String requestJSONStr = request.getParameter("requestJSONStr");
    			log.info("安卓端订单创建,requestJSONStr={}", requestJSONStr);
    
    			// 2.入参非空校验
    			if (CmUtil.isEmpty(requestJSONStr)) {
    				jsonObject.put("code", "-1");
    				jsonObject.put("result", "");
    				jsonObject.put("messages", "请求参数为空！");
    				log.error("安卓端订单创建,请求参数为空,requestJSONStr={}", requestJSONStr);
    				doResponse(response, jsonObject.toJSONString());
    				return;
    			}
    
    			// 3.业务方法
    			String orderNum = doCreateOrder(response, jsonObject,
    					requestJSONStr);
    
    			if (CmUtil.isEmpty(orderNum)) {
    				return;
    			}
    
    			// 7.响应
    			JSONObject result = new JSONObject();
    			result.put("requestJSONStr", requestJSONStr);
    			result.put("orderNum", orderNum);
    
    			jsonObject.put("code", "000000");
    			jsonObject.put("result", result);
    			jsonObject.put("messages", "交易成功");
    
    			doResponse(response, jsonObject.toJSONString());
    		} catch (Exception e) {
    			jsonObject.put("code", "-1");
    			jsonObject.put("result", "");
    			jsonObject.put("messages", "系统异常！");
    			log.error("安卓端订单创建,系统异常,e={}", e);
    			doResponse(response, jsonObject.toJSONString());
    		}
    
    	}
    
    	/**
    	 * 响应
    	 * 
    	 * @param response
    	 * @param outputStr
    	 */
    	private void doResponse(HttpServletResponse response, String outputStr) {
    		response.setContentType("application/json");
    		PrintWriter out = null;
    		try {
    			out = response.getWriter();
    			out.write(outputStr);
    		} catch (IOException e) {
    			// TODO Auto-generated catch block
    			e.printStackTrace();
    		} finally {
    			out.flush();
    			out.close();
    		}
    	}
    }

其中部分方法和包导入删除过了，为了让流程更加清晰。