记录一个Spring MVC Controller层，跳转到前端页面以及返回参数的包装类

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以下两个为常用方法

1. 进入到前端页面的方法为   createMav()

2. 返回ajax请求的方法为 successResponse()

 

代码实现 如下 ：

 

import java.util.HashMap;
import java.util.Map;import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;import org.springframework.web.context.request.RequestContextHolder;
import org.springframework.web.context.request.ServletRequestAttributes;
import org.springframework.web.servlet.ModelAndView;import com.fasterxml.jackson.annotation.JsonInclude;
import com.fasterxml.jackson.annotation.JsonInclude.Include;/** Created by HUYONG on 2017/9/8*/
public abstract class BaseController {public HttpServletRequest getRequest() {HttpServletRequest request = ((ServletRequestAttributes) RequestContextHolder.getRequestAttributes()).getRequest();return request;}public HttpServletResponse getResponse() {HttpServletResponse response = ((ServletRequestAttributes) RequestContextHolder.getRequestAttributes()).getResponse();return response;}public Result successResponse() {return successResponse(null);}public Result successResponse(Map<String, Object> model) {Result result = new Result();result.setRet(200);result.setMsg("success");result.setModel(model);return result;}public Result successResponse(Map<String, Object> model, String msg) {Result result = new Result();result.setRet(200);result.setMsg(msg);result.setModel(model);return result;}public ModelAndView createMav(String viewName, Map<String, ?> model) {return new ModelAndView(viewName, model);}public int getStart(Integer start){return start == null? 0 : start.intValue();}public int getLimit(Integer limit){return limit == null? 10 : limit.intValue();}@JsonInclude(Include.NON_NULL)public static class Result {private int ret;private String msg;private Map<String, Object> model;public int getRet() {return ret;}public void setRet(int ret) {this.ret = ret;}public String getMsg() {return msg;}public void setMsg(String msg) {this.msg = msg;}public Map<String, Object> getModel() {return model;}public void setModel(Map<String, Object> model) {this.model = model;}public void addModel(String key, Object object) {if (model == null) {model = new HashMap<>();}model.put(key, object);}}
}

 

controller层具体使用 如下

 

@Controller
@RequestMapping("/admin/courseMt")
public class CourseMaintenanceController extends BaseController{/*** 进入web-inf 目录下的admin目录的index.jsp ,并传递参数 a  ,index 页面 用 ${a} 获取* @return*/@RequestMapping("/index")public ModelAndView index(){Map<String,Object> map = Maps.newConcurrentMap();map.put("a","1");return createMav("admin/index",map);}/*** 返回前端JS发送ajax请求响应 ， 由于 BaseController 进行封装，所以ajax返回数据用 data.model.a 获取* @return*/@RequestMapping("/getCourseMtList")@ResponseBodypublic Result getCourseMtList(int pageNum,int pageSize){Map<String,Object> map = Maps.newConcurrentMap();map.put("a","1");return successResponse(map);    }

}

 

 

 

 

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