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Spring的IOC在JDBC或者Mybatis具体是怎么实现的？

0

1

spring

class="cursor-pointer"> 详细描述

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关于任务一当中在数据库当中插入100万条数据

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1

class="cursor-pointer"> 详细描述

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批量插入测试

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1

数据库

class="cursor-pointer"> 详细描述

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如何排除第三方使用的jar包冲突？

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1

maven

class="cursor-pointer"> 详细描述

class="cursor-pointer"> 错误截图

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多条件查询出错

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1

mybatis

class="cursor-pointer"> 详细描述

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注入Test类时出现问题

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1

mybatis

class="cursor-pointer"> 详细描述

class="cursor-pointer"> 错误截图

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tiles模板跳转未能正常渲染JSP

1

tiles

class="cursor-pointer"> 详细描述

class="cursor-pointer"> 错误截图

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项目打包成功后上传到服务器可以正常启动，显示启动成功

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1

分布式

class="cursor-pointer"> 详细描述

class="cursor-pointer"> 错误截图

class="cursor-pointer"> 源码

  <bean id="loginService" class="com.jnshu.service.impl.LoginServiceImpl"/>
    <bean id="loginRmi" class="com.jnshu.service.impl.LoginRmiImpl"/>
    <bean id="userService" class="com.jnshu.service.impl.UserServiceImpl"/>

    <bean id="LoginRMI" class="org.springframework.remoting.rmi.RmiServiceExporter">
        <!--设置RMI服务名，为客户端会依据此服务名来获取远程接口实现类-->
        <property name="serviceName" value="LoginRMI" />
        <!--将远程接口实现类对象设置到RMI服务中-->
        <property name="service" ref="loginRmi" />
        <!--将远程接口设置为RMI服务接口-->
        <property name="serviceInterface" value="com.jnshu.service.LoginRMI" />
        <!--为RMI服务端远程对象注册表设置端口号-->
        <property name="registryPort" value="9998" />
        <!--设置通信端口号-->
        <property name="servicePort" value="9998" />
    </bean>
    <bean id="LoginService" class="org.springframework.remoting.rmi.RmiServiceExporter">
        <!--设置RMI服务名，为客户端会依据此服务名来获取远程接口实现类-->
        <property name="serviceName" value="LoginService" />
        <!--将远程接口实现类对象设置到RMI服务中-->
        <property name="service" ref="loginService" />
        <!--将远程接口设置为RMI服务接口-->
        <property name="serviceInterface" value="com.jnshu.service.LoginService" />
        <!--为RMI服务端远程对象注册表设置端口号-->
        <property name="registryPort" value="9998" />
        <!--设置通信端口号-->
        <property name="servicePort" value="9998" />
    </bean>
    <bean id="UserService" class="org.springframework.remoting.rmi.RmiServiceExporter">
        <!--设置RMI服务名，为客户端会依据此服务名来获取远程接口实现类-->
        <property name="serviceName" value="UserService" />
        <!--将远程接口实现类对象设置到RMI服务中-->
        <property name="service" ref="userService" />
        <!--将远程接口设置为RMI服务接口-->
        <property name="serviceInterface" value="com.jnshu.service.UserService" />
        <!--为RMI服务端远程对象注册表设置端口号-->
        <property name="registryPort" value="9998" />
        <!--设置通信端口号-->
        <property name="servicePort" value="9998" />
    </bean>
</beans>

<bean id="rmiClientSetting"  abstract="true">
        
        <property name="refreshEndpointsOnStartup" value="false" />
        
        <property name="refreshEndpointsOnConnectFailure" value="true" />
        
        <property name="switchEndpointOnFailure" value="true" />
        
        <property name="registerTraceInterceptor" value="true" />
        
        <property name="cacheEndpoints" value="true" />
    </bean>
    <bean id="UserService" class="org.softamis.cluster4spring.rmi.RmiUrlListProxyFactoryBean" parent= "rmiClientSetting">
        <property name="serviceInterface" value="com.jnshu.service.UserService"/>
        <property name="serviceURLs" >
            <list>
                <value>rmi://127.0.0.1:9998/UserService</value>
                <value>rmi://127.0.0.1:9999/UserService</value>
            </list>
        </property>

<property name="endpointSelectionPolicy">
            <bean class="org.softamis.cluster4spring.support.invocation.ShuffleEndpointSelectionPolicy"/>
        </property>
    </bean>
    <bean id="LoginService" class="org.softamis.cluster4spring.rmi.RmiUrlListProxyFactoryBean" parent= "rmiClientSetting">
        <property name="serviceInterface" value="com.jnshu.service.LoginService"/>
        <property name="serviceURLs" >
            <list>
                <value>rmi://127.0.0.1:9998/LoginService</value>
                <value>rmi://127.0.0.1:9999/LoginService</value>
            </list>
        </property>

<property name="endpointSelectionPolicy">
            <bean class="org.softamis.cluster4spring.support.invocation.ShuffleEndpointSelectionPolicy"/>
        </property>
    </bean>
    <bean id="LoginRMI" class="org.softamis.cluster4spring.rmi.RmiUrlListProxyFactoryBean" parent= "rmiClientSetting">
        <property name="serviceInterface" value="com.jnshu.service.LoginRMI"/>
        <property name="serviceURLs" >
            <list>
                <value>rmi://127.0.0.1:9998/LoginRMI</value>
                <value>rmi://127.0.0.1:9999/LoginRMI</value>
            </list>
        </property>
        
        <property name="endpointSelectionPolicy">
            <bean class="org.softamis.cluster4spring.support.invocation.ShuffleEndpointSelectionPolicy"/>
        </property>
    </bean>
</beans>

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Des加密解密怎么把字节数组和String相互转化

1

md5/des

class="cursor-pointer"> 详细描述

class="cursor-pointer"> 错误截图

class="cursor-pointer"> 源码

/**
* 加密
* @param datasource byte[]
* @param password String
* @return byte[]
*/
public static byte[] encrypt(byte[] datasource, String password) { 
try{
SecureRandom random = new SecureRandom();
DESKeySpec desKey = new DESKeySpec(password.getBytes());
//创建一个密匙工厂，然后用它把DESKeySpec转换成
SecretKeyFactory keyFactory = SecretKeyFactory.getInstance("DES");
SecretKey securekey = keyFactory.generateSecret(desKey);
//Cipher对象实际完成加密操作
Cipher cipher = Cipher.getInstance("DES");
//用密匙初始化Cipher对象
cipher.init(Cipher.ENCRYPT_MODE, securekey, random);
//现在，获取数据并加密
//正式执行加密操作
return cipher.doFinal(datasource);
}catch(Throwable e){
e.printStackTrace();
}
return null;
}
/**
* 解密
* @param src byte[]
* @param password String
* @return byte[]
* @throws Exception
*/
public static byte[] decrypt(byte[] src, String password) throws Exception {
// DES算法要求有一个可信任的随机数源
SecureRandom random = new SecureRandom();
// 创建一个DESKeySpec对象
DESKeySpec desKey = new DESKeySpec(password.getBytes());
// 创建一个密匙工厂
SecretKeyFactory keyFactory = SecretKeyFactory.getInstance("DES");
// 将DESKeySpec对象转换成SecretKey对象
SecretKey securekey = keyFactory.generateSecret(desKey);
// Cipher对象实际完成解密操作
Cipher cipher = Cipher.getInstance("DES");
// 用密匙初始化Cipher对象
cipher.init(Cipher.DECRYPT_MODE, securekey, random);
// 真正开始解密操作
return cipher.doFinal(src);
}

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${pageContext.request.contextPath}

1

JSP

class="cursor-pointer"> 详细描述

class="cursor-pointer"> 错误截图

class="cursor-pointer"> 源码

<head>
		<meta charset="utf-8">
		<title>登录界面</title>
		<link rel="stylesheet" href="${pageContext.request.contextPath}/static/login/css/reset.css" />
		<link rel="stylesheet" href="${pageContext.request.contextPath}/static/login/css/common.css" />
		<link rel="stylesheet" href="${pageContext.request.contextPath}/static/login/css/font-awesome.min.css" />
	</head>
	<body>
	<style>
		body {
			background-image: url("${pageContext.request.contextPath}/static/login/imges/logo_bg.jpg");
		}
	</style>