SpringAOP实现登录验证的操作代码

要求任何操作都建立在已经登录女生可爱网名的基础上，登录操作除外。。。。

使用spring aop不仅简单，还不会对其他部件中产生影响

以下具体代码实现：

package com.joey.util; import org.apache.logging.log4j.logmanager;import org.apache.logging.log4j.logger;import org.aspectj.lang.proceedingjoinpoint;import org.aspectj.lang.annotation.around;import org.aspectj.lang.annotation.aspect;import org.aspectj.lang.annotation.pointcut;import org.springframework.stereotype.component;import org.springframework.web.context.request.requestc物理运动学公式ontextholder;import org.springframework.web.context.request.rvletrequestattributes;import org.springframework.web.rvlet.modelandview; import javax.rvlet.http.httprvletrequest;/** * 登录验证aop */@component@aspectpublic class loginhelper {     private static l深有感触的意思ogger logger = logmanager.getlogger(loginhelper.class.getname());     @pointcut("within(com.joey.controller..*)&&!within(com.joey.controller.indexcontroller)") // indexcontroller中写了登录方法    public void login() {    }     @around("login()")    public object auth(proceedingjoinpoint joinpoint) throws throwable {        // 获取ssion中的用户信息     httprvletrequest request = ((rvletrequestattributes) requestcontextholder.getrequestattributes()).getrequest();        string urname = (string) request.getssion().getattribute("urname");         if (urname == null) {            logger.info("未登录");            return new modelandview("redirect:/login");        }        logger.info("urname: " + urname);        return joinpoint.proceed();    }}既然要从ssion中获取用户信息，那么肯定要先保存的。可以自登录方法中保存urname

package com.joey.controller;

import com.joey.model.ur;
import com.joey.rvice.urrvice;
import org.apache.logging.log4j.logmanager;
import org.apache.logging.log4j.logger;
import org.springframework.stereotype.controller;
import org.springframework.web.bind.annotation.requestmapping;
import org.springframework.web.bind.annotation.requestmethod;
import org.springframework.web.rvlet.modelandview;

import javax.annotation.resource;
import javax.rvlet.http.httprvletrequest;

@controller
@requestmapping(“/”)
public class indexcontroller {
private static logger logger = logmanager.getlogger(indexcontroller.class.getname());

@resource(name = "urrvice")private urrvice urrvice;@requestmapping(va喷水器lue = {"", "index", "login"}, method = requestmethod.get)public string index() {    return "login";}/** * 管理员/普通用户登陆 * * @param urname * @param password * @return */@requestmapping(value = {"login"}, method = requestmethod.post)public modelandview login(httprvletrequest request, string urname, string password) {    int id;    try {        id = urrvice.login(urname, password);    } catch (exception e) {        e.printstacktrace();        logger.info("not f教育教学案例ound");        return new modelandview("login")                .addobject("msg", "try again");    }    ur ur = urrvice.lectbyprimarykey(id);    request.getssion().tattribute("urname", ur.getname());  // 保存urname到ssion看这里    return new modelandview(ur.getadmin() == 1 ? "admin" : "home")            .addobject("id", ur.getid())            .addobject("urname", ur.getname())            .addobject("description", ur.getdescription())            .addobject("isadmin", ur.getadmin() == 1 ? "admin" : "ur");}@requestmapping(value = "home", method = requestmethod.get)public string home() {    return "admin";}

}

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