控制层代码如下：
//取到的哪个页面
@RequestMapping("/dept.page")
public ModelAndView page(){
return new ModelAndView("dept");
}
//新增部门的方法
@RequestMapping("/save.json")
@ResponseBody
public JsonData saveDept(DeptParam param){
sysDeptService.save(param);
return JsonData.success();
} //1
@RequestMapping("/Tree.json")
@ResponseBody
public JsonData tree(){
List<DeptLevelDto> dtoList = sysTreeService.deptTree();
return JsonData.success(dtoList);
}
请求处理拦截：如下
public class SpringExceptionResolver implements HandlerExceptionResolver {
public ModelAndView resolveException(HttpServletRequest request, HttpServletResponse response, Object o, Exception ex) {
String url = request.getRequestURI().toString();
ModelAndView mv ;
String defaultMsg = "System error";
//这里我们要求项目中的所有请求json数据，都使用json结尾
if(url.endsWith(".json")){
if(ex instanceof SmallException || ex instanceof ParamException){
JsonData result = JsonData.fail(ex.getMessage());
mv = new ModelAndView("jsonView",result.toMap());
}else {
System.out.print(ex);
JsonData result = JsonData.fail(defaultMsg);
mv = new ModelAndView("jsonView",result.toMap());
}
//我们要求项目中所有请求page页面，都是用.page结尾
}else if(url.endsWith(".page")){
//log.error("unknow page exception,url"+ url,ex);
JsonData result = JsonData.fail(defaultMsg);
mv = new ModelAndView("exception",result.toMap());
}else {
//log.error("unknow exception,url"+ url,ex);
JsonData result = JsonData.fail(defaultMsg);
mv = new ModelAndView("jsonView",result.toMap());
}
return mv;
}
}
业务层代码：如下：
@Resource
private SysDeptMapper sysDeptMapper;
//新增
public void save(DeptParam param){
BeanValidator.check(param);
if(checkExist(param.getParentId(),param.getName(),param.getId())){
throw new ParamException("同一层级下存在相同的部门");
}
SysDept dept = SysDept.builder().name(param.getName()).parentId(param.getParentId())
.seq(param.getSeq()).remark(param.getRemark()).build();
dept.setLevel(LevelUtil.calculatelevel(getLevel(param.getParentId()),param.getParentId()));
dept.setOperator("System");//TODO
dept.setOperateIp("127.0.0.1");//TODO
dept.setOperateTime(new Date());
sysDeptMapper.insertSelective(dept);
}
错误提示：如下
url:{} , param:{}/sys/dept/dept.page{}五月 09, 2018 8:38:40
下午 org.springframework.web.servlet.PageNotFound noHandlerFound警告:
No mapping found for HTTP request with URI [/sys/dept/tree.json]
in DispatcherServlet with name 'spring'五月 09, 2018 8:38:40 下午
org.springframework.web.servlet.PageNotFound noHandlerFound警告:
No mapping found for HTTP request with URI [/favicon.ico]
in DispatcherServlet with name 'spring'url:{} ,
param:{}/sys/dept/save.json{"parentId":["0"],"id":[""],"name":["shiye"],"seq":["1"],
"remark":["gds"]}org.springframework.web.util.NestedServletException: Handler
dispatch failed; nested exception is java.lang.StackOverflowError
以上是新增部门信息，报的错误，数据库测试链接成功
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