eclipse4.7.0 + jdk8 + tomcat9 + spring4.2.0 + mybatis

Maven项目结构

jitu.png

POM.XML

xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">

4.0.0

com.yg

YouGan

0.0.1-SNAPSHOT

jar

YouGan

http://maven.apache.org

UTF-8

1.8

2.2

1.2

3.1.0

4.2.0.RELEASE

1.6.6

3.2.6

junit

junit

3.8.1

test

javax.servlet

jstl

${jstl.version}

javax.servlet

javax.servlet-api

${servlet.version}

provided

javax.servlet.jsp

jsp-api

${jsp.version}

provided

org.springframework

spring-beans

${spring-framework.version}

org.springframework

spring-context

${spring-framework.version}

commons-logging

commons-logging

org.springframework

spring-expression

${spring-framework.version}

org.springframework

spring-webmvc

${spring-framework.version}

org.springframework

spring-test

${spring-framework.version}

org.springframework

spring-tx

${spring-framework.version}

org.springframework

spring-core

${spring-framework.version}

org.springframework

spring-web

${spring-framework.version}

org.springframework

spring-orm

${spring-framework.version}

org.springframework

spring-jdbc

${spring-framework.version}

org.springframework

spring-aop

${spring-framework.version}

org.slf4j

slf4j-api

${org.slf4j-version}

org.slf4j

jcl-over-slf4j

${org.slf4j-version}

runtime

org.slf4j

slf4j-log4j12

${org.slf4j-version}

runtime

log4j

log4j

1.2.15

javax.mail

mail

javax.jms

jms

com.sun.jdmk

jmxtools

com.sun.jmx

jmxri

runtime

javax.inject

javax.inject

1

com.alibaba

druid

1.0.16

org.apache.commons

commons-dbcp2

2.1.1

org.mybatis

mybatis

${mybatis.version}

org.mybatis

mybatis-spring

1.2.2

YouGan

WeblabWebAppInitializer.JAVA

这是servlet配置

package com.yg.YouGan.config;

import javax.servlet.FilterRegistration;

import javax.servlet.ServletContext;

import javax.servlet.ServletException;

import org.springframework.web.filter.CharacterEncodingFilter;

import org.springframework.web.servlet.support.AbstractAnnotationConfigDispatcherServletInitializer;

public class WeblabWebAppInitializer extends AbstractAnnotationConfigDispatcherServletInitializer {

@Override

protected Class>[] getRootConfigClasses() {

return new Class>[] {};

}

@Override

protected Class>[] getServletConfigClasses() {

return new Class>[] { WebConfig.class };

}

@Override

protected String[] getServletMappings() {

return new String[] { "/" };

}

@Override

public void onStartup(ServletContext servletContext) throws ServletException {

super.onStartup(servletContext);

FilterRegistration.Dynamic encodingFilter = servletContext.addFilter("characterEncodingFilter",

new CharacterEncodingFilter());

encodingFilter.setInitParameter("encoding", "UTF-8");

encodingFilter.setInitParameter("forceEncoding", "true");

encodingFilter.addMappingForUrlPatterns(null, true, "/*");

}

}

WebConfig.JAVA

这是springmvc配置

package com.yg.YouGan.config;

import java.beans.PropertyVetoException;

import java.io.IOException;

import javax.sql.DataSource;

import org.mybatis.spring.SqlSessionFactoryBean;

import org.mybatis.spring.annotation.MapperScan;

import org.springframework.beans.factory.annotation.Autowired;

import org.springframework.context.annotation.Bean;

import org.springframework.context.annotation.ComponentScan;

import org.springframework.context.annotation.Configuration;

import org.springframework.context.annotation.PropertySource;

import org.springframework.core.env.Environment;

import org.springframework.core.io.support.PathMatchingResourcePatternResolver;

import org.springframework.core.io.support.ResourcePatternResolver;

import org.springframework.web.servlet.ViewResolver;

import org.springframework.web.servlet.config.annotation.EnableWebMvc;

import org.springframework.web.servlet.config.annotation.ResourceHandlerRegistry;

import org.springframework.web.servlet.config.annotation.WebMvcConfigurerAdapter;

import org.springframework.web.servlet.view.InternalResourceViewResolver;

import com.alibaba.druid.pool.DruidDataSource;

/**

* web组件相关配置

*

* @author WebConfig

*

*/

@Configuration

@EnableWebMvc

@PropertySource("classpath:/jdbc.properties")

@MapperScan(basePackages = "com.yg.YouGan.mybatis")

@ComponentScan(basePackages = { "com.yg.YouGan.controller,com.yg.YouGan.service.Imp,com.yg.YouGan.mybatis" })

public class WebConfig extends WebMvcConfigurerAdapter {

@Autowired

Environment env;

/**

* 配置JSP视图解析器

*

* @return

*/

@Bean

public ViewResolver viewResolver() {

System.out.println("配置试图解析");

InternalResourceViewResolver resolver = new InternalResourceViewResolver();

resolver.setPrefix("/WEB-INF/views/");

resolver.setSuffix(".jsp");

return resolver;

}

@Bean

public SqlSessionFactoryBean sqlSessionFactoryBean(DataSource dataSource) throws IOException {

System.out.println("工厂配置mybatis");

ResourcePatternResolver resourcePatternResolver = new PathMatchingResourcePatternResolver();

SqlSessionFactoryBean sqlSessionFactoryBean = new SqlSessionFactoryBean();

sqlSessionFactoryBean.setDataSource(dataSource);

sqlSessionFactoryBean.setMapperLocations(resourcePatternResolver.getResources("classpath*:/*Mapper.xml"));

return sqlSessionFactoryBean;

}

/**

* 配置静态资源的处理

*/

@Override

public void addResourceHandlers(ResourceHandlerRegistry registry) {

System.out.println("配置静态资源处理");

registry.addResourceHandler("/resources/**").addResourceLocations("/resources/");

registry.addResourceHandler("js/**").addResourceLocations("/js/");

registry.addResourceHandler("css/**").addResourceLocations("/css/");

registry.addResourceHandler("img/**").addResourceLocations("/img/");

registry.addResourceHandler("images/**").addResourceLocations("/images/");

registry.addResourceHandler("fonts/**").addResourceLocations("/fonts/");

registry.addResourceHandler("plugins/**").addResourceLocations("/plugins/");

}

@Bean

public DataSource dataSource() throws PropertyVetoException {

System.out.println("数据库连接");

DruidDataSource dataSource = new DruidDataSource();

dataSource.setDriverClassName(env.getProperty("jdbc.driver"));

dataSource.setUrl(env.getProperty("jdbc.url"));

dataSource.setUsername(env.getProperty("jdbc.username"));

dataSource.setPassword(env.getProperty("jdbc.password"));

dataSource.setInitialSize(Integer.valueOf(env.getProperty("dbcp.initialSize")));

dataSource.setMaxActive(Integer.valueOf(env.getProperty("dbcp.maxActive")));

// dataSource.setMaxIdle(Integer.valueOf(env.getProperty("dbcp.minIdle")));

// dataSource.setMaxIdle(Integer.valueOf(env.getProperty("dbcp.maxIdle")));

dataSource.setMaxWait(Long.valueOf(env.getProperty("dbcp.maxWait")));

return dataSource;

}

}

jdbc.properties

数据库配置文件，这里我用的是oracle

#----------------------------------------------------------

# oracle

#----------------------------------------------------------

jdbc.driver=oracle.jdbc.OracleDriver

jdbc.url=jdbc:oracle:thin:@ip:端口:orcl

jdbc.username=admin

jdbc.password=123

#dbcp settings

dbcp.initialSize=0

dbcp.minIdle=1

dbcp.maxIdle=20

dbcp.maxActive=20

dbcp.maxWait=60000

UserMpper.XML

/p>

"http://mybatis.org/dtd/mybatis-3-mapper.dtd">

SELECT

u.id,u.name,u.age FROM user u WHERE name=#{name}

UserMyBatisDao.JAVA

package com.yg.YouGan.mybatis;

import org.springframework.stereotype.Repository;

import com.yg.YouGan.entity.User;

@Repository

public interface UserMyBatisDao {

public User getUser(String name);

}

UserService.JAVA

package com.yg.YouGan.service;

import com.yg.YouGan.entity.User;

public interface UserService {

public User getUser(String name);

}

UserServiceImp.JAVA

package com.yg.YouGan.service.Imp;

import org.springframework.beans.factory.annotation.Autowired;

import org.springframework.stereotype.Service;

import com.yg.YouGan.entity.User;

import com.yg.YouGan.mybatis.UserMyBatisDao;

import com.yg.YouGan.service.UserService;

@Service

public class UserServiceImp implements UserService {

@Autowired

UserMyBatisDao userMapper;

public User getUser(String name) {

return userMapper.getUser(name);

}

}

UserController.JAVA

package com.yg.YouGan.controller;

import org.springframework.beans.factory.annotation.Autowired;

import org.springframework.stereotype.Controller;

import org.springframework.web.bind.annotation.RequestMapping;

import org.springframework.web.bind.annotation.RequestMethod;

import org.springframework.web.servlet.ModelAndView;

import com.yg.YouGan.entity.User;

import com.yg.YouGan.service.UserService;

@Controller

public class UserController {

@Autowired

private UserService userService;

@RequestMapping(value = "/", method = RequestMethod.GET)

public String index() {

System.out.println("访问成功");

return "index";

}

@RequestMapping(value = "/getUser", method = RequestMethod.GET)

public Object toIndex() {

System.out.println("访问用户成功");

ModelAndView mv = null;

try {

User user = userService.getUser("张广新");

mv = new ModelAndView("/index");

mv.addObject("user", user);

} catch (Exception e) {

mv = new ModelAndView("/index");

}

return mv;

}

}

User.JAVA

实体类

package com.yg.YouGan.entity;

public class User {

private int id;

private String user_name;

private String name;

private int age;

public int getId() {

return id;

}

public String getUserName() {

return user_name;

}

public void setUserName(String user_name) {

this.user_name = user_name;

}

public void setId(int id) {

this.id = id;

}

public String getName() {

return name;

}

public void setName(String name) {

this.name = name;

}

public int getAge() {

return age;

}

public void setAge(int age) {

this.age = age;

}

}