2.基于Spring-Boot的代码规范实例

包结构maven

src/main/java  -----存放java文件

   com.niugang.

               aop

                    ------  ControllerAop.java  web层aop

               bean

                    ------  UserQuery.java       mybatis查询实体

              controller

                      ------ IndexController.java

               dao

                   ------ UserDao.java

               entity

                   ------ User.java

               exception

                    ------ CheckException.java 自定义异常

               service

                    ------ UserService.java

               utils

                     ------ CodeConstant.java  常量类

                     ------ Page.java 分页对象，封装常用具体参数

                     ------ PageResultBean.java  web层返回统一的分页查询对象

                     ------ Result.java                  web层返回标示性接口

                     ------ ResultBean.java         web层返回统一对象

              Application.java ---springboot启动类

   src/main/test -----存放测试类文件

   src/main/resources-----存放配置文件

                    mapper mybatis xml文件

                          User.xml 

                    static    静态文件

                          ----script   js文件

                          ----themes  cs文件

                     tempaltes    

                             ----error

                                   error.html 覆盖springboot默认的错误文件

                            ----view

                                   add.html

                                  detail.html

                                  index.html

                                  login.html

              application-jdbc.properties

              application.properties

              logback-boot.xml   日志

pom.xml

<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>


<groupId>springboot</groupId>
<artifactId>testSpringBoot</artifactId>
<version>0.0.1-SNAPSHOT</version>
<packaging>war</packaging>
<name>2_SpringBoot_FreemarkerMyBatis</name>
<url>http://maven.apache.org</url>
<properties>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
</properties>
<!-- 继承父包 -->
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>1.5.2.RELEASE</version>
<relativePath></relativePath>
</parent>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<!--jdbc -->
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-jdbc</artifactId>
</dependency>
<!-- Spring Boot Mybatis 依赖 -->
<dependency>
<groupId>org.mybatis.spring.boot</groupId>
<artifactId>mybatis-spring-boot-starter</artifactId>
<version>1.2.0</version>
</dependency>
<!--mysql驱动 -->
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
</dependency>
<!--连接池 -->
<dependency>
<groupId>com.alibaba</groupId>
<artifactId>druid</artifactId>
<version>1.0.25</version>
</dependency>
<dependency>
<groupId>org.apache.commons</groupId>
<artifactId>commons-lang3</artifactId>
<version>3.2</version>

</dependency>

             <!-- freemarker -->
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-freemarker</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-aop</artifactId>
</dependency>
<!--alibab json  -->
<dependency>
<groupId>com.alibaba</groupId>
<artifactId>fastjson</artifactId>
<version>1.2.44</version>
</dependency>
<!--单元测试 -->
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
</dependency>
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<scope>test</scope>
</dependency>
</dependencies>
<!--maven的插件 -->
<build>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
</plugin>
</plugins>
<pluginManagement>
<plugins>
<plugin>
<!-- 配置java版本 不配置的话默认父类配置的是1.6 -->
<artifactId>maven-compiler-plugin</artifactId>
<configuration>
<source>1.7</source>
<target>1.7</target>
</configuration>
</plugin>
<!-- 配置Tomcat插件 -->
<plugin>
<groupId>org.apache.tomcat.maven</groupId>
<artifactId>tomcat7-maven-plugin</artifactId>
<version>2.2</version>
</plugin>
</plugins>
</pluginManagement>
</build>
</project>

application-jdbc.properties

# 驱动配置信息
spring.datasource.type=com.alibaba.druid.pool.DruidDataSource
spring.datasource.url = jdbc:mysql://localhost:3306/springboot?useUnicode=true&characterEncoding=utf-8 
spring.datasource.username = root
spring.datasource.password = 123456

spring.datasource.driverClassName = com.mysql.jdbc.Driver

#连接池的配置信息
## 初始化大小，最小，最大
spring.druid.initialSize=5
spring.druid.minIdle=5
spring.druid.maxActive=20
## 配置获取连接等待超时的时间
spring.druid.maxWait=60000
# 配置间隔多久才进行一次检测，检测需要关闭的空闲连接，单位是毫秒
spring.druid.timeBetweenEvictionRunsMillis=60000
# 配置一个连接在池中最小生存的时间，单位是毫秒
spring.druid.minEvictableIdleTimeMillis=300000
spring.druid.validationQuery=SELECT 1 FROM DUAL
spring.druid.testWhileIdle=true
spring.druid.testOnBorrow=false
spring.druid.testOnReturn=false
spring.druid.poolPreparedStatements=true
spring.druid.maxPoolPreparedStatementPerConnectionSize=20
# 配置监控统计拦截的filters，去掉后监控界面sql无法统计，'wall'用于防火墙
spring.druid.filters=stat,wall,log4j
# 通过connectProperties属性来打开mergeSql功能；慢SQL记录
spring.druid.connectionProperties=druid.stat.mergeSql=true;druid.stat.slowSqlMillis=5000

application.properties

#web项目名称
server.contextPath=/myweb
#配置freemaker
#模板地址默认从classpath:templates下面加载
#spring.freemarker.template-loader-path=/WEB-INF/view
spring.freemarker.cache=false
spring.freemarker.charset=UTF-8
spring.freemarker.check-template-location=true
spring.freemarker.content-type=text/html
spring.freemarker.expose-request-attributes=true
spring.freemarker.expose-session-attributes=true
spring.freemarker.request-context-attribute=request

spring.freemarker.suffix=.html

#引入jdbc相关配置
spring.profiles.active=jdbc
#mybatis.config = mybatis 配置文件名称
#mybatis.mapperLocations = mapper xml 文件地址
#mybatis.typeAliasesPackage = 实体类包路径
#mybatis.typeHandlersPackage = type handlers 处理器包路径
#mybatis.check-config-location = 检查 mybatis 配置是否存在，一般命名为 mybatis-config.xml
#mybatis.executorType = 执行模式。默认是 SIMPLE
## Mybatis 配置
mybatis.typeAliasesPackage=com.niugang.entity
mybatis.mapperLocations=classpath:mapper/*.xml
#logback配置
#=====================================  log  =============================  
logging.config=classpath:logback-boot.xml
#修改默认HTTP编码，之前是在web.xml中过滤的
spring.http.enconding.charset=UTF-8

logback-boot.xml  

<configuration>      
    <!-- %m输出的信息,%p日志级别,%t线程名,%d日期,%c类的全名,%i索引【从数字0开始递增】,,, -->      
    <!-- appender是configuration的子节点，是负责写日志的组件。 -->  
    <!-- ConsoleAppender：把日志输出到控制台 -->  
    <appender name="STDOUT" class="ch.qos.logback.core.ConsoleAppender">      
        <encoder>      
            <pattern>%d %p (%file:%line)- %m%n</pattern>    
            <!-- 控制台也要使用UTF-8，不要使用GBK，否则会中文乱码 -->  
            <charset>UTF-8</charset>     
        </encoder>      
    </appender>      
    <!-- RollingFileAppender：滚动记录文件，先将日志记录到指定文件，当符合某个条件时，将日志记录到其他文件 -->  
    <!-- 以下的大概意思是：1.先按日期存日志，日期变了，将前一天的日志文件名重命名为XXX%日期%索引，新的日志仍然是sys.log -->  
    <!--             2.如果日期没有发生变化，但是当前日志的文件大小超过1KB时，对当前日志进行分割 重命名-->  
    <appender name="syslog"      
        class="ch.qos.logback.core.rolling.RollingFileAppender">      
        <File>d:/springbootlog/springboot.log</File>      
        <!-- rollingPolicy:当发生滚动时，决定 RollingFileAppender 的行为，涉及文件移动和重命名。 -->  
        <!-- TimeBasedRollingPolicy： 最常用的滚动策略，它根据时间来制定滚动策略，既负责滚动也负责出发滚动 -->  
        <rollingPolicy class="ch.qos.logback.core.rolling.TimeBasedRollingPolicy">      
            <!-- 活动文件的名字会根据fileNamePattern的值，每隔一段时间改变一次 -->  
            <!-- 文件名：log/sys.2017-12-05.0.log -->  

            <fileNamePattern>log/springboot.%d.%i.log</fileNamePattern>   

 <!-- 每产生一个日志文件，该日志文件的保存期限为30天 -->   
            <maxHistory>30</maxHistory>     
            <timeBasedFileNamingAndTriggeringPolicy  class="ch.qos.logback.core.rolling.SizeAndTimeBasedFNATP">      
                <!-- maxFileSize:这是活动文件的大小，默认值是10MB,本篇设置为1KB，只是为了演示 -->    
                <maxFileSize>1KB</maxFileSize>      
            </timeBasedFileNamingAndTriggeringPolicy>      
        </rollingPolicy>      
        <encoder>      
            <!-- pattern节点，用来设置日志的输入格式 -->  
            <pattern>      
                %d %p (%file:%line)- %m%n    
            </pattern>      
            <!-- 记录日志的编码 -->  
            <charset>UTF-8</charset> <!-- 此处设置字符集 -->     
        </encoder>      
    </appender>      
    <!-- 控制台输出日志级别 -->  
    <root level="info">      
        <appender-ref ref="STDOUT" />      
    </root>      
    <!-- 指定项目中某个包，当有日志操作行为时的日志记录级别 -->  
    <!-- com.niugang为根包，也就是只要是发生在这个根包下面的所有日志操作行为的权限都是DEBUG -->  
    <!-- 级别依次为【从高到低】：FATAL > ERROR > WARN > INFO > DEBUG > TRACE  -->  
    <logger name="com.niugang" level="DEBUG">      
        <appender-ref ref="syslog" />      
    </logger>      
</configuration>   

ControllerAop.java

package com.niugang.aop;
import org.aspectj.lang.ProceedingJoinPoint;
import org.aspectj.lang.annotation.Around;
import org.aspectj.lang.annotation.Aspect;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.stereotype.Component;
import com.niugang.exception.CheckException;
import com.niugang.utils.CodeConstant;
import com.niugang.utils.PageResultBean;
import com.niugang.utils.Result;
import com.niugang.utils.ResultBean;
@Aspect
@Component
public class ControllerAop {
private Logger logger = LoggerFactory.getLogger(ControllerAop.class);
@Around("execution(public * com.niugang.controller..*.*(..))")
public Object aroundAdvice(ProceedingJoinPoint pjp) throws Throwable {

long startTime = System.currentTimeMillis();

            Result result;
try {
Object proceed = pjp.proceed();
// 对于页面的处理
if (proceed instanceof String) {
logger.info("result request page address");
return proceed;
} else if (proceed instanceof ResultBean) { //对于查询单个对象
result = (ResultBean<?>) proceed;
} else {
result = (PageResultBean<?>) proceed; //对于分页查询
}
// 如果需要打印入参，可以从这里取出打印
// Object[] args = pjp.getArgs();
// 本次操作用时（毫秒）
long elapsedTime = System.currentTimeMillis() - startTime;
logger.info("[{}] use time: {}", pjp.getSignature(), elapsedTime);
} catch (Throwable e) {
result = handlerException(pjp, e);
}
return result;

}

         @SuppressWarnings("rawtypes")
private ResultBean<?> handlerException(ProceedingJoinPoint pjp, Throwable e) {
        //TODO  pjp返回类型待判断
ResultBean<?> result = new ResultBean();
// 已知异常【注意：已知异常不要打印堆栈，否则会干扰日志】
// 校验出错，参数非法
if (e instanceof CheckException || e instanceof IllegalArgumentException) {
result.setResultMessage(e.getLocalizedMessage());
result.setResultCode(CodeConstant.CHECK_FAIL);
} else {
logger.error(pjp.getSignature() + " error ", e);
// TODO 未知的异常，应该格外注意，可以发送邮件通知等
result.setResultMessage("未知异常");
result.setResultCode(CodeConstant.UNKNOWN_EXCEPTION);
}
return result;
}

}

UserQuery.java

package com.niugang.bean;
import com.niugang.entity.User;
import com.niugang.utils.CodeConstant;

/**
 * 封装实体类 查询对象
 * @author niugang
 *
 */
public class UserQuery extends User {


/**
* 页码
*/
private int pageNumber = CodeConstant.DEFAULT_PAGE_NUMBER;
/**
* 页面大小
*/
private int pageSize = CodeConstant.DEFAULT_PAGE_SIZE;
/**

* mysql分页查询 limit startRows,pageSize;

      */
private int startRows;
public int getPageNumber() {
return pageNumber;
}
public void setPageNumber(int pageNumber) {
this.pageNumber = pageNumber;
}
public int getPageSize() {
return pageSize;
}
public void setPageSize(int pageSize) {
this.pageSize = pageSize;
}
public int getStartRows() {
return (pageNumber-1)*pageSize;
}
public void setStartRows(int startRows) {
this.startRows = startRows;
}
}

IndexController.java

package com.niugang.controller;
import java.util.List;
import javax.annotation.Resource;
import org.apache.commons.lang3.StringUtils;
import org.springframework.stereotype.Controller;
import org.springframework.ui.ModelMap;
import org.springframework.web.bind.annotation.PathVariable;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.bind.annotation.ResponseBody;
import com.niugang.bean.UserQuery;
import com.niugang.entity.User;
import com.niugang.service.UserService;
import com.niugang.utils.PageResultBean;
import com.niugang.utils.ResultBean;
/**
 * 
 * @author niugang spring boot helloWrold

 */

public class IndexController {
@Resource
private UserService userService;


/**
* 跳转到登录页面
* 
* @param map
* @return
*/
@RequestMapping(value = "/login", method = RequestMethod.GET)
public String toLogin(ModelMap map) {
return "view/login";
}


/**
* 登录信息校验
* 
* @param map
* @return
*/
@RequestMapping(value = "/login", method = RequestMethod.POST)
public String login(ModelMap map, String name, String password) {


if (StringUtils.isNotBlank(name) && !name.equals("admin") && StringUtils.isNotBlank(password)
&& !password.equals("123456")) {
map.put("errorMessage", "用户名或密码错误");
return "login";
}


return "redirect:index";

}

@RequestMapping(value = "/index", method = RequestMethod.GET)
public String toIndex() {
return "view/index";
}


/**
* 分页查询
* 
* @return
*/
@RequestMapping(value = "/index", method = RequestMethod.POST)
@ResponseBody
public PageResultBean<User> index(UserQuery query) {
List<User> list = userService.queryListByPage(query);
int queryCount = userService.queryCount(query);
PageResultBean<User> pageResultBean = new PageResultBean<User>();
pageResultBean.setData(list);
pageResultBean.setPageNumber(query.getPageNumber());
pageResultBean.setPageSize(query.getPageSize());
pageResultBean.setTotalCount(queryCount);


return pageResultBean;
}


/**
* 跳转到详情页面
* 
* @return
*/
@RequestMapping(value = "/detail", method = RequestMethod.GET)


public String toDetail() {
return "view/detail";

}

       /**
* 详情信息
* 
* @param id
* @param map
* @return
*/
@RequestMapping(value = "/detail/{id}", method = RequestMethod.POST)
@ResponseBody
public ResultBean<User> detail(@PathVariable(value = "id") Integer id) {
User user = userService.get(id);
ResultBean<User> resultBean = new ResultBean<User>();
resultBean.setData(user);
return resultBean;
}
/**
* 删除
* 
* @param id
* @return
*/
@RequestMapping(value = "/delete/{id}", method = RequestMethod.POST)
public ResultBean<User> delete(@PathVariable(value = "id") Integer id) {
userService.delete(id);
ResultBean<User> resultBean = new ResultBean<User>();
return resultBean;
}

     /**
* 跳转到添加页面
* 
* @param map
* @return
*/
@RequestMapping(value = "/save", method = RequestMethod.GET)
public String toSave(ModelMap map) {
return "view/add";
}


/**
* 保存添加信息
* 按照正常的逻辑，添加完用户信息，要将id返回
* 
* @param user
* @return
*/
@RequestMapping(value = "/save", method = RequestMethod.POST)
@ResponseBody
public ResultBean<User> save(User user) {
userService.save(user);
ResultBean<User> resultBean = new ResultBean<User>();
return resultBean;
}


}

UserDao.java

package com.niugang.dao;
import java.util.List;
import org.springframework.stereotype.Repository;
import com.niugang.bean.UserQuery;
import com.niugang.entity.User;
@Repository
public interface UserDao {
List<User> queryListByPage(UserQuery user);
User get(Integer id);
void save(User user);
void delete(Integer id);
int queryCount(UserQuery user);
}

User.java

package com.niugang.entity;
public class User {
private Integer id;
private String name;
private Integer age;
private String phone;
private String password;


public String getPassword() {
return password;
}


public void setPassword(String password) {
this.password = password;

}

      public Integer getId() {
return id;
}


public void setId(Integer id) {
this.id = id;
}


public String getName() {
return name;
}


public void setName(String name) {
this.name = name;
}


public Integer getAge() {
return age;
}


public void setAge(Integer age) {
this.age = age;
}


public String getPhone() {
return phone;
}


public void setPhone(String phone) {
this.phone = phone;
}


@Override
public String toString() {
return "User [id=" + id + ", name=" + name + ", age=" + age + ", phone=" + phone + ", password=" + password
+ "]";
}
   
}

CheckException.java 

package com.niugang.exception;


/**
 * 检测异常
 * @author niugang
 * 只能继承RuntimeException spring aop只能捕获RuntimeException异常
 *
 */
public class CheckException extends RuntimeException {


private static final long serialVersionUID = 1L;


public CheckException() {
}


public CheckException(String message) {
super(message);
}


public CheckException(Throwable cause) {
super(cause);
}


public CheckException(String message, Throwable cause) {
super(message, cause);
}


public CheckException(String message, Throwable cause, boolean enableSuppression, boolean writableStackTrace) {
super(message, cause, enableSuppression, writableStackTrace);
}

}

UserService.java

package com.niugang.service;


import java.util.List;


import javax.annotation.Resource;


import org.apache.commons.lang3.StringUtils;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.Transactional;
import com.niugang.bean.UserQuery;
import com.niugang.dao.UserDao;
import com.niugang.entity.User;
import com.niugang.exception.CheckException;


@Service
public class UserService {


private static Logger logger = LoggerFactory.getLogger(UserService.class);
@Resource
private UserDao userDao;


public List<User> queryListByPage(UserQuery user) {
logger.info("access queryListByPage method params is:{}", user.toString());
return userDao.queryListByPage(user);



}

@Transactional
public void save(User user) {
logger.info("access get method params is:{}", user.toString());
if (StringUtils.isBlank(user.getName())) {
throw new CheckException("用户名不能为空");
}
if (user.getAge() == null) {
throw new CheckException("年龄不能为空");
}
if (StringUtils.isBlank(user.getPhone())) {
throw new CheckException("电话不能为空");
}
user.setPassword("123456");
userDao.save(user);
//为了验证事务
//throw new CheckException("添加数据错误");


}


public User get(Integer id) {
logger.info("access get method param is:{}", id);
return userDao.get(id);
}


public void delete(Integer id) {
logger.info("access delete method param is:{}", id);
userDao.delete(id);
}


public int queryCount(UserQuery user) {
logger.info("access queryCount method param is:{}", user.toString());
return userDao.queryCount(user);
}


}

CodeConstant.java

package com.niugang.utils;
/**
 * 常量表
 * @author niugang
 *
 */
public class CodeConstant {
   /**
    * 没有登录
    */
public static final int NO_LOGIN = -1;
    /**
     * 成功
     */
public static final int SUCCESS = 0;
    /**
     * 检查
     */
public static final int CHECK_FAIL = 1;
    /**
     * 没有权限
     */
public static final int NO_PERMISSION = 2;
    /**
     * 位置异常
     */
public static final int UNKNOWN_EXCEPTION = -99;
/**
* 默认页码
*/
public static final int  DEFAULT_PAGE_NUMBER=1;
/**
* 默认页面大小
*/
public static final int  DEFAULT_PAGE_SIZE=5;
}

Page.java

package com.niugang.utils;


/**
 * 页面对象
 * 
 * @author niugang
 *
 */
public class Page {
/**
* 页码
*/
private int pageNumber = CodeConstant.DEFAULT_PAGE_NUMBER;
/**
* 页面大小
*/
private int pageSize = CodeConstant.DEFAULT_PAGE_SIZE;
/**
* 总页数
*/
private int totalPage;


/**
* 总记录数
*/

private int totalCount;

      public int getPageNumber() {
return pageNumber;
}


public void setPageNumber(int pageNumber) {
this.pageNumber = pageNumber;
}


public int getPageSize() {
return pageSize;
}


public void setPageSize(int pageSize) {
this.pageSize = pageSize;
}


public int getTotalPage() {
if (totalCount % pageSize == 0) {
return totalCount / pageSize;
}
return totalCount / pageSize + 1;
}


public void setTotalPage(int totalPage) {
this.totalPage = totalPage;
}


public int getTotalCount() {
return totalCount;
}


public void setTotalCount(int totalCount) {
this.totalCount = totalCount;
}

}

PageResultBean.java

package com.niugang.utils;
import java.io.Serializable;
import java.util.List;


/**
 * controller层返回带分页对象
 * @author niugang
 *
 */
public class PageResultBean<T> extends Page implements Serializable,Result{

private static final long serialVersionUID = 1L;
/**
* 返回的信息
*/
private String resultMessage = "success";
/**
* 返回码
*/

private  Integer resultCode=CodeConstant.SUCCESS;

   
/**
* 返回的数据
*/
private List<T> data;
public PageResultBean() {
super();
}

public PageResultBean(String resultMessage, Integer resultCode, List<T> data) {
super();
this.resultMessage = resultMessage;
this.resultCode = resultCode;
this.data = data;
}

public String getResultMessage() {
return resultMessage;
}

public void setResultMessage(String resultMessage) {
this.resultMessage = resultMessage;
}
public Integer getResultCode() {
return resultCode;
}

public void setResultCode(Integer resultCode) {
this.resultCode = resultCode;
}

public List<T> getData() {
return data;
}
public void setData(List<T> data) {
this.data = data;
}

}

Result.java

package com.niugang.utils;


/**
 * 标示性接口
 * @author niugang
 *
 */
public interface Result{


}

ResultBean.java

package com.niugang.utils;


import java.io.Serializable;
/**
 * controller层返回对象
 * @author niugang
 *
 * @param <T>
 */
public class ResultBean<T> implements Serializable,Result{

private static final long serialVersionUID = 1L;
/**
* 放回的信息
*/
private String resultMessage = "success";
/**
* 返回码
*/

private  Integer resultCode=CodeConstant.SUCCESS;

      /**
* 返回的数据
*/
private T data;

public ResultBean() {
super();
}
public ResultBean(String resultMessage, Integer resultCode, T data) {
super();
this.resultMessage = resultMessage;
this.resultCode = resultCode;
this.data = data;
}
public String getResultMessage() {
return resultMessage;
}
public void setResultMessage(String resultMessage) {
this.resultMessage = resultMessage;
}
public Integer getResultCode() {
return resultCode;
}
public void setResultCode(Integer resultCode) {
this.resultCode = resultCode;
}
public T getData() {
return data;
}
public void setData(T data) {
this.data = data;
}

}

Application.java

package com.niugang;


import org.mybatis.spring.annotation.MapperScan;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.boot.web.support.SpringBootServletInitializer;
//解决包tomcat冲突
//@EnableAutoConfiguration(exclude={WebMvcAutoConfiguration.class}) 
//组件扫描,会自动扫描springboot启动类包及其子包下的注解文件
//@ComponentScan("com.niugang.controller")
//springboot注解
//springboot1.2+之后用@SpringBootApplication替代了三个注解
@SpringBootApplication
//mapper 接口类扫描包配置
@MapperScan(value={"com.niugang.dao"})
public class Application extends  SpringBootServletInitializer{

     public static void main(String[] args) {
    SpringApplication.run(Application.class,args);
}


}

User.xml

<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE mapper PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN" "http://mybatis.org/dtd/mybatis-3-mapper.dtd" >
<mapper namespace="com.niugang.dao.UserDao">
<resultMap id="BaseResultMap" type="com.niugang.entity.User">
<result column="id" property="id" />
<result column="name" property="name" />
<result column="age" property="age" />
<result column="phone" property="phone" />
</resultMap>


<!--查询字段 -->
<sql id="Base_Column_List">
id, name, age,phone
</sql>
<!-- 查询条件 -->
<sql id="queryCondition">
<where>
<if test="id!=null">
and id=#{id}
</if>
<if test="name!=null">
and name=#{name}
</if>
<if test="age!=null">
and age=#{age}
</if>
<if test="phone!=null">
and phone=#{phone}
</if>
</where>

</sql>

      <select id="queryListByPage" resultMap="BaseResultMap"
parameterType="com.niugang.bean.UserQuery">
select a.* from user a ,(select id from user 
      <where>
<if test="id!=null">
and id=#{id}
</if>
<if test="name!=null">
and name=#{name}
</if>
<if test="age!=null">
and age=#{age}
</if>
<if test="phone!=null">
and phone=#{phone}
</if>
    </where>
order by id  limit #{startRows},#{pageSize} ) b where a.id=b.id


</select>


<insert id="save" parameterType="com.niugang.entity.User" >
insert into user (name,password,age,phone)
values(#{name},#{password},#{age},#{phone})
</insert>


<delete id="delete" parameterType="int">
delete from user where id
=#{id}
</delete>


<select id="get" parameterType="int" resultMap="BaseResultMap">
select
<include refid="Base_Column_List" />
from user
where id =#{id}
</select>
 
    <select id="queryCount" parameterType="com.niugang.bean.UserQuery" resultType="int">
     
      select count(*) from user 
        <where>
<if test="id!=null">
and id=#{id}
</if>
<if test="name!=null">
and name=#{name}
</if>
<if test="age!=null">
and age=#{age}
</if>
<if test="phone!=null">
and phone=#{phone}
</if>
    </where>
    </select>

</mapper>

error.html

<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>Insert title here</title>
</head>
<body>
     未知异常
</body>

</html>

add.html

<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Document</title>
</head>
<link rel="stylesheet" type="text/css" href="themes/bootstrap.min.css" />
<script type="text/javascript" src="script/jquery.min.js"></script>
<script type="text/javascript" src="script/bootstrap.js"></script>
   <!--layer弹出框-->
    <link rel="stylesheet" href="script/layer/mobile/need/layer.css">
<script type="text/javascript" src="script/layer/layer.js"></script>
<style>
   form{
     width:60%;
     margin:0 auto;  
  }
  
</style>
<body>


<form id="add_form">
<div class="form-group">
<label for="name">姓名</label> <input
type="text" class="form-control" name="name" placeholder="姓名">
</div>
<div class="form-group">
<label for="age">年龄</label> <input
type="text" class="form-control" name="age"
placeholder="年龄">
</div>
<div class="form-group">
<label for="phone">电话</label> <input
type="text" class="form-control" name="phone"
placeholder="电话">
</div>
<!-- <button type="button" id="btn_save" class="btn btn-primary form-control">保存</button> -->
</form>

</body>
</html>

index.html

<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>Insert title here</title>
<link rel="stylesheet" type="text/css" href="themes/bootstrap.min.css" />
<script type="text/javascript" src="script/jquery.min.js"></script>
<script type="text/javascript" src="script/bootstrap.js"></script>
<!--layer弹出框-->
<link rel="stylesheet" href="script/layer/mobile/need/layer.css">
<script type="text/javascript" src="script/layer/layer.js"></script>
<style type="text/css">
button {
margin-left: 15px;
}
</style>
</head>
<body>
<button type='button' class='btn btn-info' onclick="add();">添加</button>
<table class="table table-bordered table-striped"
style=" 75%; margin: 0 auto">
<thead>
<tr>
<th>用户名</th>
<th>年龄</th>
<th>电话</th>
<th>操作</th>
</tr>


</thead>
<tbody>

</tbody>

</table>

<nav aria-label="Page navigation" style=" 240px; margin: 0 auto">
<ul class="pagination">
<li><a href="#" aria-label="Previous" id="previousPage"> <span
aria-hidden="true">上一页</span>
</a></li>
<li><a href="#" aria-label="Next" id="nextPage"> <span
aria-hidden="true">下一页</span>
</a></li>
<li><input type="hidden" id="pageNumber"><input
type="hidden" id="totalPage"></li>
</ul>
</nav>
<script type="text/javascript">

function initData(pageNumber) {

$
.ajax({
type : "POST",
url : "index",
data : {
"pageNumber" : pageNumber
},
dataType : "json",
success : function(data) {
if (data.resultCode == 0) {
var dataList = data.data;
$("tbody").children().remove();
if (dataList && dataList.length > 0) {
for (var i = 0; i < dataList.length; i++) {
var template = "<tr>";
template += "<td>" + dataList[i].name
+ "</td>"
template += "<td>" + dataList[i].age
+ "</td>"
template += "<td>" + dataList[i].phone
+ "</td>"
template += "<td><button type='button' class='btn btn-info' >详情</button><button type='button' class='btn btn-warning'>删除</button></td>"
template += "</tr>"
$("tbody").append(template);
}


}
$("#pageNumber").val(data.pageNumber);
var totalPage = data.totalPage;
if (totalPage != 0) {
$("#totalPage").val(totalPage);
}


}
}


});

}

              initData(1);
function edit(id) {
alert(id);
}
function del(id) {
var flag = confirm("你确定要删除此选项吗");
if (flag == true) {
window.location.href = "delete/" + id;
}
}
function detail(id) {
window.location.href = "detail/" + id;
}
function add() {
var openIndex=layer.open({
type : 2, //ifrme层，才能写请求路径
title : "添加人员",
resize : false,//不允许拉伸，
move : false,//不允许拖动
area : [ '650px', "60%" ],
maxmin : true,//支持最大化最小化
btn : [ '保存', '取消' ],
content : [ 'save', 'no' ], //这里content是一个普通的String
yes : function(index, layero) {
var body = layer.getChildFrame("body", index);
var con = body.find("#add_form").serialize();
$.ajax({
type : "POST",
url : "save",
data : con,
dataType : "json",
success : function(data) {
if (data.resultCode == 0) {
$(body.find("#add_form"))[0].reset()
layer.msg('保存成功', {icon: 4,time:1000,anim: 6});
    //layer.close(openIndex);
/* layer.alert("保存成功", {
title : "消息",
resize : false,
move : false,
success:function(){
layer.close(openIndex);
}
}) */
                                
} else {
layer.alert(data.resultMessage, {
title : "错误信息",
resize : false,
move : false
});
}
}


});


},
success : function(layero, index) {//弹出层后的成功回调函数


}
});
}
$("#nextPage").click(function() {
var pageNumber = parseInt($("#pageNumber").val());
var totalPage = parseInt($("#totalPage").val());
if (pageNumber + 1 > totalPage) {
$(this).attr("disabled", true);
layer.msg('已经到尾页啦', {icon: 4,time:1000,anim: 6});
} else {
initData(1 + pageNumber);
$(this).attr("disabled", false);
}


});
$("#previousPage").click(function() {
var pageNumber = parseInt($("#pageNumber").val());
var totalPage = parseInt($("#totalPage").val());
if (pageNumber - 1 < 1) {
$(this).attr("disabled", true);
layer.msg('已经到首页啦', {icon: 4,time:1000,anim: 6});
} else {
initData(pageNumber - 1);
$(this).attr("disabled", false);
}


});
</script>
</body>
</html>

detail.html

<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Document</title>
</head>
<body>
  <h2>详情页面</h2>
  用户名：<input type="text" readonly value="${user.name!''}">
  年龄：<input type="text" readonly value="${user.age!''}">
  电话：<input type="text" readonly value="${user.phone!''}">
</body>
</html>

login.html

<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>Insert title here</title>
</head>
<body>
       <h2>spring boot</h2>
      <#if errorMessage??> 
         ${errorMessage}
       </#if>
        <form action="login" method='post'>
           用户名:<input type="text" name="name"><p>
            密码:<input type="password" name="password"><p>
            <input type="submit" value="提交">
        </form>
</body>

运行结果

​

​

这个错误就是从后天返回的，通过aop统一处理的

       

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