跟着别人学ssm+springSecurity(三)

Spring+SpringMVC

一、SpringMVC配置文件：目录：resource/config/spring，文件名：spring-mvc.xml

<?xml version="1.0" encoding="UTF-8"?><beans xmlns="http://www.springframework.org/schema/beans"       xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"       xmlns:context="http://www.springframework.org/schema/context"       xmlns:mvc="http://www.springframework.org/schema/mvc"       xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc.xsd">    <!--自动扫描控制器-->    <context:component-scan base-package="com.magic.rent.controller"/>    <!--视图渲染-->    <bean id="internalResourceViewResolver" class="org.springframework.web.servlet.view.InternalResourceViewResolver">        <property name="prefix" value="/WEB-INF/views/"/>        <property name="suffix" value=".jsp"/>    </bean>    <!--控制器映射器和控制器适配器-->    <mvc:annotation-driven/></beans>

二、Spring配置文件：目录：resource/config/spring，文件名：applicationContext-service.xml

<?xml version="1.0" encoding="UTF-8"?><beans xmlns="http://www.springframework.org/schema/beans"       xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"       xmlns:context="http://www.springframework.org/schema/context"       xsi:schemaLocation="http://www.springframework.org/schema/beans 　　　　http://www.springframework.org/schema/beans/spring-beans.xsd 　　　　http://www.springframework.org/schema/context 　　　　http://www.springframework.org/schema/context/spring-context.xsd">    <!--扫描service-->    <context:component-scan base-package="com.zyj.service"/>    <!--注册统一异常控制-->    <bean id="exception" class="com.zyj.exception.exhandler.CustomExceptionHandler"/></beans>

目录：resource/config/spring，文件名：applicationContext-transaction.xm

<?xml version="1.0" encoding="UTF-8"?><beans xmlns="http://www.springframework.org/schema/beans"       xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:tx="http://www.springframework.org/schema/tx"       xmlns:aop="http://www.springframework.org/schema/aop"       xsi:schemaLocation="http://www.springframework.org/schema/beans       http://www.springframework.org/schema/beans/spring-beans.xsd       http://www.springframework.org/schema/tx       http://www.springframework.org/schema/tx/spring-tx.xsd       http://www.springframework.org/schema/aop       http://www.springframework.org/schema/aop/spring-aop.xsd">    <bean id="dataSourceTransactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">        <property name="dataSource" ref="dataSource"/>    </bean>    <tx:advice id="txAdvice" transaction-manager="dataSourceTransactionManager">        <tx:attributes>　　　　　　<--这部分，主要是根据方法名称来进行匹配限定，但是我们是用MyBatis自动生成的Mapper接口，所以在这边大家要按照MyBatis的命名规范来设置name的值。            <tx:method name="select*" propagation="REQUIRED"/>            <tx:method name="update*" propagation="REQUIRED"/>            <tx:method name="delete*" propagation="REQUIRED"/>            <tx:method name="insert*" propagation="REQUIRED"/>        </tx:attributes>    </tx:advice>    <aop:config>        <aop:advisor advice-ref="txAdvice" pointcut="execution(* com.zyj.service.*.*(..))"/>    </aop:config></beans>

三、Spring统一异常处理：目录：com.zyj.exception.exhandler，文件名：CustomExceptionHandler.java

package com.zyj.exception.exhandler;import com.zyj.exception.custom.BusinessException;import com.zyj.exception.custom.ParameterException;import org.springframework.stereotype.Service;import org.springframework.web.servlet.HandlerExceptionResolver;import org.springframework.web.servlet.ModelAndView;import javax.servlet.http.HttpServletRequest;import javax.servlet.http.HttpServletResponse;import java.util.HashMap;import java.util.Map;public class CustomExceptionHandler implements HandlerExceptionResolver {    public ModelAndView resolveException(HttpServletRequest httpServletRequest, HttpServletResponse httpServletResponse, Object o, Exception ex) {        Map<String, Object> model = new HashMap<String, Object>();        model.put("ex", ex);        return new ModelAndView("../error/404", model);        // 根据不同错误转向不同页面        /*if (ex instanceof BusinessException) {            return new ModelAndView("../error/business_error", model);        } else if (ex instanceof ParameterException) {            return new ModelAndView("../error/parameter_error", model);        } else {            return new ModelAndView("../error/404", model);        }*/    }}

写一个自定义异常范例

package com.zyj.exception.custom;public class BusinessException extends RuntimeException {    public BusinessException(String message) {        super(message);    }    public BusinessException(String message, Throwable cause) {        super(message, cause);    }}