SpringBoot登录判断过程代码实例

2023-08-03 20:50:04 69

$(".button").click(function(e){ $("button",this).addClass('active'); if($(".button").hasClass("login")){ $.ajax({ url:"/cch/dologin", type:"POST", data:{ name:$("#name").serialize(), pass:$("#pass").serialize(), }, success:function(result){ if(result.code==100){ window.location.href="/cch/main"rel="externalnofollow"; }else{ alert(result.extendInfo.login_error); } } }) } })

//JsonMsg工具类 publicclassJsonMsg{ privateintcode; privateStringmsg; privateMapextendInfo=newHashMap(); publicintgetCode(){ returncode; } publicvoidsetCode(intcode){ this.code=code; } publicStringgetMsg(){ returnmsg; } publicvoidsetMsg(Stringmsg){ this.msg=msg; } publicMapgetExtendInfo(){ returnextendInfo; } publicvoidsetExtendInfo(MapextendInfo){ this.extendInfo=extendInfo; } publicstaticJsonMsgsuccess(){ JsonMsgres=newJsonMsg(); res.setCode(100); res.setMsg("操作成功"); returnres; } publicstaticJsonMsgfail(){ JsonMsgres=newJsonMsg(); res.setCode(200); res.setMsg("操作失败"); returnres; } publicJsonMsgaddInfo(Stringkey,Objectobject){ this.extendInfo.put(key,object); returnthis; } }

/** *controller *判断用户名和密码是否正确 */ @RequestMapping(value="/cch/dologin",method=RequestMethod.POST) @ResponseBody publicJsonMsgdologin(HttpServletRequestrequest){ Stringusername=request.getParameter("name"); Stringpassword=request.getParameter("pass"); System.out.println(username+""+password); if(!"name=admin".equals(username)||!"pass=123".equals(password)){ returnJsonMsg.fail().addInfo("login_error","用户名或密码错误"); } request.getSession().setAttribute("islogin","true");//如果正确，则在seesion里添加判断属性，可供拦截器判断是否登录过 returnJsonMsg.success(); }

//自定义拦截器 //如果未登录则跳回登录页 publicclassSysInterceptorextendsHandlerInterceptorAdapter{ /** *进入拦截器后首先进入的方法 *返回false则不再继续执行 *返回true则继续执行 */ @Override publicbooleanpreHandle(HttpServletRequestrequest,HttpServletResponseresponse,Objecthandler)throwsException{ System.out.println("我是拦截器：我进来了"); HttpSessionsession=request.getSession(); Stringislogin=(String)session.getAttribute("islogin"); if(islogin==null){ System.out.println("用户没有登录"); response.sendRedirect("/cch/login"); returnfalse; } System.out.println("用户已登录"); returntrue; } @Override publicvoidpostHandle(HttpServletRequestrequest,HttpServletResponseresponse,Objecthandler,ModelAndViewmodelAndView)throwsException{ } @Override publicvoidafterCompletion(HttpServletRequestrequest,HttpServletResponseresponse,Objecthandler,Exceptionex)throwsException{ } }

//把拦截器添加到springboot中 @Configuration publicclassSessionConfigimplementsWebMvcConfigurer{ @Override publicvoidaddInterceptors(InterceptorRegistryregistry){ //拦截有"/cch"前缀的路径，除了"/cch/login","/cch/dologin" registry.addInterceptor(newSysInterceptor()).excludePathPatterns("/cch/login","/cch/dologin").addPathPatterns("/cch/**"); } }

SpringBoot登录判断过程代码实例

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