Spring MVC完全注解方式配置web项目

package com.liulu.bank.config;import org.springframework.web.WebApplicationInitializer;import org.springframework.web.filter.CharacterEncodingFilter;import org.springframework.web.servlet.support.AbstractAnnotationConfigDispatcherServletInitializer;import javax.servlet.FilterRegistration;import javax.servlet.ServletContext;import javax.servlet.ServletException;import java.nio.charset.StandardCharsets;/** * User : liulu * Date : 2016-10-7 15:12 */public class WebAppInitializer extends AbstractAnnotationConfigDispatcherServletInitializer implements WebApplicationInitializer { @Override protected Class<?>[] getRootConfigClasses() {  return new Class<?>[]{RootConfig.class}; } @Override protected Class<?>[] getServletConfigClasses() {  return new Class<?>[]{WebConfig.class}; } /**  * 配置DispatcherServlet 匹配的路径  * @return  */ @Override protected String[] getServletMappings() {  return new String[]{"/"}; } /**  * 配置其他的 servlet 和 filter  *  * @param servletContext  * @throws ServletException  */ @Override public void onStartup(ServletContext servletContext) throws ServletException {  FilterRegistration.Dynamic encodingFilter = servletContext.addFilter("encodingFilter", CharacterEncodingFilter.class);  encodingFilter.setInitParameter("encoding", String.valueOf(StandardCharsets.UTF_8));  encodingFilter.setInitParameter("forceEncoding", "true");  encodingFilter.addMappingForUrlPatterns(null, false, "/*"); }}

package com.liulu.bank.config;import com.mchange.v2.c3p0.ComboPooledDataSource;import org.springframework.context.annotation.*;import org.springframework.core.env.Environment;import org.springframework.jdbc.core.JdbcTemplate;import org.springframework.jdbc.datasource.DataSourceTransactionManager;import org.springframework.stereotype.Controller;import org.springframework.transaction.PlatformTransactionManager;import org.springframework.transaction.annotation.EnableTransactionManagement;import javax.annotation.Resource;import javax.sql.DataSource;import java.beans.PropertyVetoException;/** * User : liulu * Date : 2016-10-7 15:36 */@Configuration@PropertySource("classpath:config.properties") // 导入属性文件@EnableAspectJAutoProxy // 相当于 xml 中的 <aop:aspectj-autoproxy/>@EnableTransactionManagement // 开启注解事务@ComponentScan(basePackages = {"com.liulu.lit", "com.liulu.bank"}, excludeFilters = @ComponentScan.Filter(classes = Controller.class ))public class RootConfig { // 上面导入的属性文件中的属性会 注入到 Environment 中 @Resource private Environment env; /**  * 配置数据库连接池 c3p0，  * @return  * @throws PropertyVetoException  */ @Bean public DataSource dataSource() throws PropertyVetoException {  ComboPooledDataSource dataSource = new ComboPooledDataSource();  dataSource.setJdbcUrl(env.getProperty("db.url"));  dataSource.setDriverClass(env.getProperty("db.driver"));  dataSource.setUser(env.getProperty("db.user"));  dataSource.setPassword(env.getProperty("db.password"));  dataSource.setMinPoolSize(Integer.valueOf(env.getProperty("pool.minPoolSize")));  dataSource.setMaxPoolSize(Integer.valueOf(env.getProperty("pool.maxPoolSize")));  dataSource.setAutoCommitOnClose(false);  dataSource.setCheckoutTimeout(Integer.valueOf(env.getProperty("pool.checkoutTimeout")));  dataSource.setAcquireRetryAttempts(2);  return dataSource; } /**  * 配置事物管理器  * @param dataSource  * @return  */ @Bean public PlatformTransactionManager transactionManager(DataSource dataSource) {  return new DataSourceTransactionManager(dataSource); } @Bean public JdbcTemplate jdbcTemplate (DataSource dataSource) {  return new JdbcTemplate(dataSource); }}

#数据库配置db.url=jdbc:mysql://192.168.182.135:3306/bankdb.driver=com.mysql.jdbc.Driverdb.user=rootdb.password=123456#数据库连接池配置#连接池中保留的最小连接数pool.minPoolSize=5#连接池中保留的最大连接数pool.maxPoolSize=30#获取连接超时时间pool.checkoutTimeout=1000

package com.liulu.bank.config;import org.springframework.context.annotation.Bean;import org.springframework.context.annotation.ComponentScan;import org.springframework.context.annotation.Configuration;import org.springframework.stereotype.Controller;import org.springframework.web.servlet.ViewResolver;import org.springframework.web.servlet.config.annotation.DefaultServletHandlerConfigurer;import org.springframework.web.servlet.config.annotation.EnableWebMvc;import org.springframework.web.servlet.config.annotation.WebMvcConfigurerAdapter;import org.thymeleaf.TemplateEngine;import org.thymeleaf.spring4.SpringTemplateEngine;import org.thymeleaf.spring4.templateresolver.SpringResourceTemplateResolver;import org.thymeleaf.spring4.view.ThymeleafViewResolver;import org.thymeleaf.templatemode.TemplateMode;import java.nio.charset.StandardCharsets;/** * User : liulu * Date : 2016-10-7 15:16 */@Configuration@EnableWebMvc // 启用 SpringMVC ，相当于 xml中的 <mvc:annotation-driven/>@ComponentScan(basePackages = {"com.liulu.bank.controller", "com.liulu.lit"},  includeFilters = @ComponentScan.Filter(classes = Controller.class),  useDefaultFilters = false)public class WebConfig extends WebMvcConfigurerAdapter { /**  * 设置由 web容器处理静态资源 ，相当于 xml中的<mvc:default-servlet-handler/>  */ @Override public void configureDefaultServletHandling(DefaultServletHandlerConfigurer configurer) {  configurer.enable(); } /**  * 下面三个bean 配置 Thymeleaf 模板  * @return  */ @Bean public SpringResourceTemplateResolver templateResolver() {  SpringResourceTemplateResolver templateResolver = new SpringResourceTemplateResolver();  templateResolver.setPrefix("/WEB-INF/templates/");  templateResolver.setSuffix(".html");  templateResolver.setTemplateMode(TemplateMode.HTML);  templateResolver.setCharacterEncoding(String.valueOf(StandardCharsets.UTF_8));  return templateResolver; } @Bean public TemplateEngine templateEngine(SpringResourceTemplateResolver templateResolver) {  SpringTemplateEngine templateEngine = new SpringTemplateEngine();  templateEngine.setTemplateResolver(templateResolver);  return templateEngine; } @Bean public ViewResolver viewResolver(TemplateEngine templateEngine) {  ThymeleafViewResolver viewResolver = new ThymeleafViewResolver();  viewResolver.setTemplateEngine(templateEngine);  viewResolver.setCharacterEncoding(String.valueOf(StandardCharsets.UTF_8));  return viewResolver; }}