2016年10月26日
mysql explain时,user表主键跟引用表(comment表)关联,始终为all,原因是:
user表有18万条记录,主键
`id` varchar(32) CHARACTER SET utf8 COLLATE utf8_general_ci NOT NULL DEFAULT '' COMMENT '用户id',
而comment表的引用
`user_id` varchar(64) CHARACTER SET utf8mb4 COLLATE utf8mb4_general_ci NULL DEFAULT NULL COMMENT '评论用户id',
字符集不相同位数也不同,引起的,查询关联不能按照主键关联,始终为all级别
解决方法:把 字符集和位数调到一样即可,一下从all级别调到了eq_ref 的级别
posted @
2017-12-04 17:16 liufx 阅读(172) |
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下载:
https://www.mongodb.com/download-center?jmp=nav#community
初始安装的时候没有admin数据库
开启认证
修改配置文件/etc/MongoDB.conf
打开auth的注释,设置为auth = true
重启mongodb
sudo service mongodb restart
添加管理员
使用命令mongo进入命令行
创建第一个用户,该用户需要有用户管理权限
这里设置其角色为root
use admin
db.createUser({user:"admin",pwd:"password",roles:["root"]})
新增的用户在system.users中
> db.getCollectionNames()
[ "system.indexes", "system.users", "system.version" ]
第一个用户添加完成后,便需要认证才能继续添加其他用户
使用db.auth("admin", "password")认证
添加数据库用户
为其他数据库添加用户,添加用户前需要切换到该数据库
这里设置其角色为dbOwner
use testdb1
db.createUser({user: "testdb1u1", pwd: "xyz123", roles: [{ role: "dbOwner", db: "testdb1" }]})
查看用户
> use admin
switched to db admin
> db.system.users.find()
{ "_id" : "admin.admin", "user" : "admin", "db" : "admin", "credentials" : { "SCRAM-SHA-1" : { "iterationCount" : 10000, "salt" : "Fdh2ldIW3Aw8Cxz9Dt+96g==", "storedKey" : "zbkfj6ZQH1xwGoOg8JJ6OjtR3Cs=", "serverKey" : "yqkqHABZ64rEeq1X0htOAtUnwFU=" } }, "roles" : [ { "role" : "root", "db" : "admin" } ] }
{ "_id" : "testdb1.testdb1u1", "user" : "testdb1u1", "db" : "testdb1", "credentials" : { "SCRAM-SHA-1" : { "iterationCount" : 10000, "salt" : "Xxt2uET3jRtAYVigyLUydw==", "storedKey" : "yinLG61nRFzfC+3NtB5p9RR+avM=", "serverKey" : "OX/Pdft7JWJm/g0jg07q49OC4c8=" } }, "roles" : [ { "role" : "dbOwner", "db" : "testdb1" } ] }
参考地址:
http://blog.csdn.net/zahuopuboss/article/details/53635078
http://blog.csdn.net/hsd2012/article/details/51286495
posted @
2016-12-20 16:10 liufx 阅读(12577) |
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一、spring-context*.xml 合并到 spring-mvc.xml 的方法
spring-servlet.xml 中加入 <import resource="ApplicationContext.xml" />
ApplicationContext.xml 中把其它的xml文件import进来
web.xml
SpringMVC核心分发器 加入参数 <param-value>classpath:spring-mvc.xml</param-value>
不加载 <param-value>classpath*:/spring-context*.xml</param-value>
controller/service等都在mvc中加载
<context:component-scan base-package="com.mweb.**.controller" />
<context:component-scan base-package="com.mweb.**.service" />。。。。需要加载的@Component等
加入:
<aop:aspectj-autoproxy proxy-target-class="true" />
二、spring-context*.xml / spring-mvc.xml 分开加载扫描的方法
web.xml 中:
<context-param>
<param-name>contextConfigLocation</param-name>
<param-value>classpath*:/spring-context*.xml</param-value> </context-param>
<listener> <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class> 必须加入才行 </listener> <servlet>
<servlet-name>spring</servlet-name>
<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
<init-param>
<param-name>contextConfigLocation</param-name>
<param-value>classpath:spring-mvc.xml</param-value> </init-param>
<load-on-startup>1</load-on-startup>
</servlet>
spring-mvc.xml 中:
<context:component-scan base-package="com.mweb.**.controller" /> 扫描 controller
<aop:aspectj-autoproxy /> aop 参考下面的也行
- <aop:aspectj-autoproxy proxy-target-class="true">
- <aop:include name="controllerAspect"/> @Aspect声明的类
- </aop:aspectj-autoproxy>
spring-context.xml中:
<context:component-scan base-package="com.mweb.**.extension,
com.mweb.**.service,
com.mweb.base.aspect,
com.mweb.base.shiro.realm" />
<aop:aspectj-autoproxy proxy-target-class="true" />这样就可以了
posted @
2016-11-22 09:44 liufx 阅读(3264) |
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/*多条-删除*/
function deleteBatch(){
layer.confirm('确认要删除吗?',function(index){
var idList = new Array();
// 获得选中的ID值
$("input[name='id']:checkbox:checked").each(function(){
idList.push(this.value);
});
$.ajax({
type:"post",
url:"${CONTEXT_PATH}/sys/menu/deletebatch.html",
data: $('#form-menu').serialize(),//表单数据
data: {"idList":idList},
//cache:false,
success:function(msg){
if(msg=="success"){
// 延时1S刷新
setTimeout('location.replace(location.href)', 1000);
layer.msg('全部删除成功!',{icon:1,time:1000});
}
if(msg=="error"){
layer.msg('异常!');
}
}
});
});
}
后台controller:
@RequiresPermissions("sys:menu:edit")
@ResponseBody
@RequestMapping("/deletebatch")
public String deletebatch(@RequestParam("idList[]") List<String> objs,ModelMap modelMap, HttpServletRequest request) throws Exception {
String retStr = "error";
try{
menuService.removeMulti(objs);
retStr = "success" ;
}catch(Exception e) {
logger.info(e.getMessage());
}
return retStr;
}
后台service:
@CacheEvict(value="defaultCache",allEntries=true)
public void removeMulti(List<String> objs) {
BasicDBList basicDBList=new BasicDBList();
for(String id : objs) {
basicDBList.add(new BasicDBObject("id",id));
}
DBObject obj =new BasicDBObject();
obj.put("$or", basicDBList);
Query query=new BasicQuery(obj);
mongoTemplate.remove(query,Menu.class);
}
如果不跳转,应该把ajax里面的dataType改成html ,json时返回不正确
posted @
2016-10-27 13:22 liufx 阅读(681) |
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/** ajax登录,并jquery md5 加密密码 */
function loginsubmit() {
var salt=$("#username").val();
var pwd=$("#password").val();
var md5Pwd=$.md5(pwd+salt);
var validateCode=$("#validateCode").val();
var rememberMe=$("#rememberMe").val();
data="username="+ salt
+ "&password=" + md5Pwd
+ "&validateCode=" + validateCode
+ "&rememberMe=" + rememberMe;
$.ajax({
type: "POST",
url: "loginsubmit",
dataType:'html',
data: data,
contentType:"application/x-www-form-urlencoded;charset=UTF-8",
success: function(msg){
if(msg=="ok") {
location.href = "index";
}else if (msg=="errorcode"){
alert("验证码无效!");
}
},
error: function (XMLHttpRequest, textStatus, errorThrown) {
alert(XMLHttpRequest.status);
alert(XMLHttpRequest.readyState);
alert(textStatus);
}
});
}
以上代码中url为 loginsubmit.html 去掉".html"即可提交 ,后台代码用的@ResponseBody注解
posted @
2016-10-27 07:46 liufx 阅读(236) |
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<property name="unauthorizedUrl" value="/sys/unauthorized"/> 不起作用
spring-mvc.xml 中加入:
<!-- 异常处理 -->
<bean class="org.springframework.web.servlet.handler.SimpleMappingExceptionResolver">
<property name="exceptionMappings">
<props>
<prop key="org.apache.shiro.authz.UnauthorizedException">jsp/unauthorized</prop>
<prop key="org.apache.shiro.authz.UnauthenticatedException">jsp/unauthorized</prop>
<prop key="org.apache.shiro.authz.AuthorizationException">jsp/unauthorized</prop>
<prop key="java.lang.Throwable">jsp/unauthorized</prop>
</props>
</property>
</bean>
如果还不能解决:可以看一下web.xml中是否有:
<error-page>
<error-code>400</error-code>
<location>/WEB-INF/template/common/errorPage.jsp</location>
</error-page>
<error-page>
<error-code>404</error-code>
<location>/WEB-INF/template/common/errorPage.jsp</location>
</error-page>
<error-page>
<error-code>500</error-code>
<location>/sys/unauthorized.html</location>
</error-page>
都屏蔽掉,应该就好了
posted @
2016-10-26 09:40 liufx 阅读(2862) |
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