使用Eclipse搭建Maven项目（最近做个人网站，顺便记下来以防后面的项目要用）

1、打开Eclipse，File-New-Maven Project

2、点击下一步，如图所示选择webapp

3、点击下一步，如图自己填写

4、这样，我们就完成了创建Maven项目，架构如图所示：

5、接下来整合SSM框架，在pom.xml中添加jar包，在此文件中添加的包会自动下载到事先配置好的maven仓库：

代码如下：

<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/maven-v4_0_0.xsd">
	<modelVersion>4.0.0</modelVersion>
	<groupId>SSM</groupId>
	<artifactId>PersonalWeb</artifactId>
	<packaging>war</packaging>
	<version>0.0.1-SNAPSHOT</version>
	<name>TEST Maven Webapp</name>
	<url>http://maven.apache.org</url>
	<!-- <dependencies> <dependency> <groupId>junit</groupId> <artifactId>junit</artifactId> 
		<version>3.8.1</version> <scope>test</scope> </dependency> </dependencies> -->
	<properties>
		<!-- spring版本号 -->
		<spring.version>4.0.2.RELEASE</spring.version>
		<!-- mybatis版本号 -->
		<mybatis.version>3.2.6</mybatis.version>
		<!-- log4j日志文件管理包版本 -->
		<slf4j.version>1.7.7</slf4j.version>
		<log4j.version>1.2.17</log4j.version>
	</properties>
	<dependencies>
		<dependency>
			<groupId>junit</groupId>
			<artifactId>junit</artifactId>
			<version>4.11</version>
			<!-- 表示开发的时候引入，发布的时候不会加载此包 -->
			<scope>test</scope>
		</dependency>
		<dependency>
			<groupId>org.springframework</groupId>
			<artifactId>spring-core</artifactId>
			<version>${spring.version}</version>
		</dependency>

		<dependency>
			<groupId>org.springframework</groupId>
			<artifactId>spring-web</artifactId>
			<version>${spring.version}</version>
		</dependency>
		<dependency>
			<groupId>org.springframework</groupId>
			<artifactId>spring-oxm</artifactId>
			<version>${spring.version}</version>
		</dependency>
		<dependency>
			<groupId>org.springframework</groupId>
			<artifactId>spring-tx</artifactId>
			<version>${spring.version}</version>
		</dependency>
		<dependency>
			<groupId>org.springframework</groupId>
			<artifactId>spring-aop</artifactId>
			<version>${spring.version}</version>
		</dependency>

		<dependency>
			<groupId>org.springframework</groupId>
			<artifactId>spring-jdbc</artifactId>
			<version>${spring.version}</version>
		</dependency>

		<dependency>
			<groupId>org.springframework</groupId>
			<artifactId>spring-webmvc</artifactId>
			<version>${spring.version}</version>
		</dependency>
		<dependency>
			<groupId>org.springframework</groupId>
			<artifactId>spring-aop</artifactId>
			<version>${spring.version}</version>
		</dependency>

		<dependency>
			<groupId>org.springframework</groupId>
			<artifactId>spring-context-support</artifactId>
			<version>${spring.version}</version>
		</dependency>

		<dependency>
			<groupId>org.springframework</groupId>
			<artifactId>spring-test</artifactId>
			<version>${spring.version}</version>
		</dependency>
		<!-- mybatis核心包 -->
		<dependency>
			<groupId>org.mybatis</groupId>
			<artifactId>mybatis</artifactId>
			<version>${mybatis.version}</version>
		</dependency>
		<!-- mybatis/spring包 -->
		<dependency>
			<groupId>org.mybatis</groupId>
			<artifactId>mybatis-spring</artifactId>
			<version>1.2.2</version>
		</dependency>
		<!-- 导入java ee jar 包 -->
		<dependency>
			<groupId>javax</groupId>
			<artifactId>javaee-api</artifactId>
			<version>7.0</version>
		</dependency>
		<dependency>
			<groupId>com.alibaba</groupId>
			<artifactId>druid</artifactId>
			<version>1.0.31</version>
		</dependency>
		<!-- 导入Mysql数据库链接jar包 -->
		<dependency>
			<groupId>mysql</groupId>
			<artifactId>mysql-connector-java</artifactId>
			<version>5.1.30</version>
		</dependency>
		<!-- 导入dbcp的jar包，用来在applicationContext.xml中配置数据库 -->
		<dependency>
			<groupId>commons-dbcp</groupId>
			<artifactId>commons-dbcp</artifactId>
			<version>1.2.2</version>
		</dependency>
		<!-- JSTL标签类 -->
		<dependency>
			<groupId>jstl</groupId>
			<artifactId>jstl</artifactId>
			<version>1.2</version>
		</dependency>
		<!-- 日志文件管理包 -->
		<!-- log start -->
		<dependency>
			<groupId>log4j</groupId>
			<artifactId>log4j</artifactId>
			<version>${log4j.version}</version>
		</dependency>


		<!-- 格式化对象，方便输出日志 -->
		<dependency>
			<groupId>com.alibaba</groupId>
			<artifactId>fastjson</artifactId>
			<version>1.1.41</version>
		</dependency>


		<dependency>
			<groupId>org.slf4j</groupId>
			<artifactId>slf4j-api</artifactId>
			<version>${slf4j.version}</version>
		</dependency>

		<dependency>
			<groupId>org.slf4j</groupId>
			<artifactId>slf4j-log4j12</artifactId>
			<version>${slf4j.version}</version>
		</dependency>
		<!-- log end -->
		<!-- 映入JSON -->
		<dependency>
			<groupId>org.codehaus.jackson</groupId>
			<artifactId>jackson-mapper-asl</artifactId>
			<version>1.9.13</version>
		</dependency>
		<!-- 上传组件包 -->
		<dependency>
			<groupId>commons-fileupload</groupId>
			<artifactId>commons-fileupload</artifactId>
			<version>1.3.1</version>
		</dependency>
		<dependency>
			<groupId>commons-io</groupId>
			<artifactId>commons-io</artifactId>
			<version>2.4</version>
		</dependency>
		<dependency>
			<groupId>commons-codec</groupId>
			<artifactId>commons-codec</artifactId>
			<version>1.9</version>
		</dependency>

	</dependencies>
	<build>
		<finalName>PersonalWeb</finalName>
	</build>
</project>

6、在src/main/resources下添加配置文件：spring-mybatis.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:p="http://www.springframework.org/schema/p"
	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-3.1.xsd  
http://www.springframework.org/schema/context  
http://www.springframework.org/schema/context/spring-context-3.1.xsd  
http://www.springframework.org/schema/mvc  
http://www.springframework.org/schema/mvc/spring-mvc-4.0.xsd">
	<!-- 自动扫描 -->
	<context:component-scan base-package="com.lzs.PersonalWeb" />
	<!-- 引入配置文件 -->
	<!-- <bean id="propertyConfigurer" class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer"> 
		<property name="location" value="classpath:jdbc.properties" /> </bean> -->

	<context:property-placeholder
		ignore-unresolvable="true" location="classpath:jdbc.properties" />
	<bean id="dataSource" class="com.alibaba.druid.pool.DruidDataSource"
		init-method="init" destroy-method="close">
		<property name="driverClassName" value="${jdbc.driver}" />
		<property name="url" value="${jdbc.url}" />
		<property name="username" value="${jdbc.username}" />
		<property name="password" value="${jdbc.password}" />
		<!-- 初始化连接大小 -->
		<property name="initialSize" value="${jdbc.initialSize}"></property>
		<!-- 连接池最大数量 -->
		<property name="maxActive" value="${jdbc.maxActive}"></property>
		<!-- 连接池最大空闲 -->
		<property name="maxIdle" value="${jdbc.maxIdle}"></property>
		<!-- 连接池最小空闲 -->
		<property name="minIdle" value="${jdbc.minIdle}"></property>
		<!-- 获取连接最大等待时间 -->
		<property name="maxWait" value="${jdbc.maxWait}"></property>
	</bean>

	<!-- spring和MyBatis完美整合，不需要mybatis的配置映射文件 -->
	<bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
		<property name="dataSource" ref="dataSource" />
		<!-- 自动扫描mapping.xml文件 -->
		<property name="mapperLocations" value="classpath:com/lzs/PersonalWeb/dao/*.xml"></property>
	</bean>

	<!-- DAO接口所在包名，Spring会自动查找其下的类 -->
	<bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
		<property name="basePackage" value="com.lzs.PersonalWeb.dao" />
		<property name="sqlSessionFactoryBeanName" value="sqlSessionFactory"></property>
	</bean>

	<!-- (事务管理)transaction manager, use JtaTransactionManager for global tx -->
	<bean id="transactionManager"
		class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
		<property name="dataSource" ref="dataSource" />
	</bean>

</beans>

7、配置数据库连接池jdbc.properties

jdbc.driver=com.mysql.jdbc.Driver
jdbc.url=jdbc:mysql://localhost:3306/personalweb?useUnicode=true&characterEncoding=utf-8
jdbc.username=root
jdbc.password=123456
#配置初始化大小、最小、最大
jdbc.initialSize=1
jdbc.minIdle=2
jdbc.maxIdle=20
jdbc.maxActive=20
#配置获取连接等待超时的时间 
jdbc.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
jdbc.timeBetweenEvictionRunsMillis=60000
#配置一个连接在池中最小生存的时间，单位是毫秒
jdbc.minEvictableIdleTimeMillis=300000
filters=stat,wall

8、配置日志：log4j.properties

log4j.rootLogger=INFO,Console,File

log4j.appender.Console=org.apache.log4j.ConsoleAppender
log4j.appender.Console.Target=System.out
log4j.appender.Console.layout = org.apache.log4j.PatternLayout
log4j.appender.Console.layout.ConversionPattern=[%c] - %m%n

log4j.appender.CONSOLE=org.apache.log4j.ConsoleAppender
log4j.appender.CONSOLE.Encoding=utf-8
log4j.appender.CONSOLE.layout=org.apache.log4j.PatternLayout
log4j.appender.CONSOLE.layout.ConversionPattern=[%-5p] %d{yyyy-MM-dd HH:mm:ss} %C{1}@(%F:%L):%m%n

log4j.appender.File = org.apache.log4j.RollingFileAppender
log4j.appender.File.File = logs/ssm.log
log4j.appender.File.MaxFileSize = 10MB
log4j.appender.File.Threshold = ALL
log4j.appender.File.layout = org.apache.log4j.PatternLayout
log4j.appender.File.layout.ConversionPattern =[%p] [%d{yyyy-MM-dd HH\:mm\:ss}][%c]%m%n

#开发环境记录SQL日志
log4j.logger.com.eliteams=debug    
log4j.logger.com.ibatis=debug
log4j.logger.java.sql.Statement=debug
log4j.logger.java.sql.PreparedStatement=debug,stdout

9、开始整合spring-mvc，配置spring-mvc.xml

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
       xmlns:aop="http://www.springframework.org/schema/aop"
       xmlns:context="http://www.springframework.org/schema/context"
       xmlns:mvc="http://www.springframework.org/schema/mvc"
       xmlns:tx="http://www.springframework.org/schema/tx"
       xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
       xmlns:p="http://www.springframework.org/schema/p"
       xsi:schemaLocation="http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop.xsd
        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 
        http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx.xsd">
	<!-- 自动扫描该包，使SpringMVC认为包下用了@controller注解的类是控制器 -->
	<context:component-scan base-package="com.lzs.PersonalWeb.controller" />
	<!--避免IE执行AJAX时，返回JSON出现下载文件 -->
	<bean id="mappingJacksonHttpMessageConverter"
		class="org.springframework.http.converter.json.MappingJacksonHttpMessageConverter">
		<property name="supportedMediaTypes">
			<list>
				<value>text/html;charset=UTF-8</value>
			</list>
		</property>
	</bean>
	<!-- 启动SpringMVC的注解功能，完成请求和注解POJO的映射 -->
	<bean
		class="org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter">
		<property name="messageConverters">
			<list>
				<ref bean="mappingJacksonHttpMessageConverter" /> <!-- JSON转换器 -->
			</list>
		</property>
	</bean>
	<!-- 定义跳转的文件的前后缀 ，视图模式配置 -->
	<bean
		class="org.springframework.web.servlet.view.InternalResourceViewResolver">
		<!-- 这里的配置我的理解是自动给后面action的方法return的字符串加上前缀和后缀，变成一个 可用的url地址 -->
		<property name="prefix" value="/WEB-INF/jsp/" />
		<property name="suffix" value=".jsp" />
	</bean>

	<!-- 配置文件上传，如果没有使用文件上传可以不用配置，当然如果不配，那么配置文件中也不必引入上传组件包 -->
	<bean id="multipartResolver"
		class="org.springframework.web.multipart.commons.CommonsMultipartResolver">
		<!-- 默认编码 -->
		<property name="defaultEncoding" value="utf-8" />
		<!-- 文件大小最大值 -->
		<property name="maxUploadSize" value="10485760000" />
		<!-- 内存中的最大值 -->
		<property name="maxInMemorySize" value="40960" />
	</bean>
</beans>

10、修改web.xml

<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
	xmlns="http://java.sun.com/xml/ns/javaee"
	xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd"
	version="3.0">
	<display-name>Archetype Created Web Application</display-name>
	<!-- Spring和mybatis的配置文件 -->
	<context-param>
		<param-name>contextConfigLocation</param-name>
		<param-value>
		classpath:spring-mybatis.xml
		</param-value>
	</context-param>

	<listener>
		<listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
	</listener>
	<!-- 编码过滤器 -->
	<filter>
		<filter-name>encodingFilter</filter-name>
		<filter-class>org.springframework.web.filter.CharacterEncodingFilter</filter-class>
		<async-supported>true</async-supported>
		<init-param>
			<param-name>encoding</param-name>
			<param-value>UTF-8</param-value>
		</init-param>
	</filter>
	<filter-mapping>
		<filter-name>encodingFilter</filter-name>
		<url-pattern>/*</url-pattern>
	</filter-mapping>


	<!-- Spring监听器 -->
	<listener>
		<listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
	</listener>
	<!-- 防止Spring内存溢出监听器 -->
	<listener>
		<listener-class>org.springframework.web.util.IntrospectorCleanupListener</listener-class>
	</listener>

	<!-- Spring MVC servlet -->
	<servlet>
		<servlet-name>SpringMVC</servlet-name>
		<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
		<init-param>
			<param-name>contextConfigLocation</param-name>
			<param-value>classpath:spring-mvc.xml</param-value>
		</init-param>
		<load-on-startup>1</load-on-startup>
		<async-supported>true</async-supported>
	</servlet>
	<servlet-mapping>
		<servlet-name>SpringMVC</servlet-name>
		<!-- 此处可以可以配置成*.do，对应struts的后缀习惯 -->
		<!-- 本人习惯使用加rest/前缀 -->
		<!-- <url-pattern>*.do</url-pattern> -->
		<url-pattern>/rest/*</url-pattern>
	</servlet-mapping>
	<welcome-file-list>
		<!-- 欢迎页面，访问/rest/index方法，也可以直接指定一个jsp(index.jsp) -->
		<welcome-file>rest/index</welcome-file>
	</welcome-file-list>
</web-app>

11、至此，maven整合ssm基本搭建完成，结构树如下：

此时，会发现项目中带红叉，查看problems中，显示如下错误：

经百度获得解决方法：

1、先改web.xml中webapp节点:

 

<?xml version="1.0" encoding="UTF-8"?>

<web-app xmlns="http://xmlns.jcp.org/xml/ns/javaee" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"

xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee http://xmlns.jcp.org/xml/ns/javaee/web-app_3_1.xsd"

version="3.1">

 

然后关闭Eclipse,改项目下的.settings\org.eclipse.wst.common.project.facet.core.xml.将版本改成为3.1：<installed facet="jst.web" version="3.1"/>,再启动Eclipse.

 

右键项目->Maven->Update Project

2、在pom.xml配置文件的<build></build>中加入如下语句：

<plugins>  

<plugin>  

<groupId>org.apache.maven.plugins</groupId>  

<artifactId>maven-compiler-plugin</artifactId>  

<configuration>  

<source>1.7（修改成自己JDK的版本）</source>  

<target>1.7（修改成自己JDK的版本）</target>  

</configuration>  

</plugin>  

</plugins>  

右键项目->Maven->Update Project

12、下面添加测试代码：在src/main/java下添加model层、service层、dao层、controller层：

自动生成dao层和model层：http://blog.csdn.net/qq_31874947/article/details/78392367

User.java:

package com.lzs.PersonalWeb.model;

import java.util.Date;

public class User {
    private Integer id;

    private String name;

    private String ename;

    private String sex;

    private Double height;

    private Date birth;

    private String constellation;

    private String hobby;

    private String qq;

    private String education;

    private String bg;

    private String phone;

    private String email;

    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 == null ? null : name.trim();
    }

    public String getEname() {
        return ename;
    }

    public void setEname(String ename) {
        this.ename = ename == null ? null : ename.trim();
    }

    public String getSex() {
        return sex;
    }

    public void setSex(String sex) {
        this.sex = sex == null ? null : sex.trim();
    }

    public Double getHeight() {
        return height;
    }

    public void setHeight(Double height) {
        this.height = height;
    }

    public Date getBirth() {
        return birth;
    }

    public void setBirth(Date birth) {
        this.birth = birth;
    }

    public String getConstellation() {
        return constellation;
    }

    public void setConstellation(String constellation) {
        this.constellation = constellation == null ? null : constellation.trim();
    }

    public String getHobby() {
        return hobby;
    }

    public void setHobby(String hobby) {
        this.hobby = hobby == null ? null : hobby.trim();
    }

    public String getQq() {
        return qq;
    }

    public void setQq(String qq) {
        this.qq = qq == null ? null : qq.trim();
    }

    public String getEducation() {
        return education;
    }

    public void setEducation(String education) {
        this.education = education == null ? null : education.trim();
    }

    public String getBg() {
        return bg;
    }

    public void setBg(String bg) {
        this.bg = bg == null ? null : bg.trim();
    }

    public String getPhone() {
        return phone;
    }

    public void setPhone(String phone) {
        this.phone = phone == null ? null : phone.trim();
    }

    public String getEmail() {
        return email;
    }

    public void setEmail(String email) {
        this.email = email == null ? null : email.trim();
    }
}

UserMapper.java

package com.lzs.PersonalWeb.dao;

import com.lzs.PersonalWeb.model.User;

public interface UserMapper {
    int deleteByPrimaryKey(Integer id);

    int insert(User record);

    int insertSelective(User record);

    User selectByPrimaryKey(Integer id);

    int updateByPrimaryKeySelective(User record);

    int updateByPrimaryKey(User record);
}

UserMapper.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.lzs.PersonalWeb.dao.UserMapper" >
  <resultMap id="BaseResultMap" type="com.lzs.PersonalWeb.model.User" >
    <id column="id" property="id" jdbcType="INTEGER" />
    <result column="name" property="name" jdbcType="VARCHAR" />
    <result column="ename" property="ename" jdbcType="VARCHAR" />
    <result column="sex" property="sex" jdbcType="VARCHAR" />
    <result column="height" property="height" jdbcType="DOUBLE" />
    <result column="birth" property="birth" jdbcType="DATE" />
    <result column="constellation" property="constellation" jdbcType="VARCHAR" />
    <result column="hobby" property="hobby" jdbcType="VARCHAR" />
    <result column="QQ" property="qq" jdbcType="VARCHAR" />
    <result column="education" property="education" jdbcType="VARCHAR" />
    <result column="BG" property="bg" jdbcType="VARCHAR" />
    <result column="phone" property="phone" jdbcType="VARCHAR" />
    <result column="email" property="email" jdbcType="VARCHAR" />
  </resultMap>
  <sql id="Base_Column_List" >
    id, name, ename, sex, height, birth, constellation, hobby, QQ, education, BG, phone, 
    email
  </sql>
  <select id="selectByPrimaryKey" resultMap="BaseResultMap" parameterType="java.lang.Integer" >
    select 
    <include refid="Base_Column_List" />
    from user
    where id = #{id,jdbcType=INTEGER}
  </select>
  <delete id="deleteByPrimaryKey" parameterType="java.lang.Integer" >
    delete from user
    where id = #{id,jdbcType=INTEGER}
  </delete>
  <insert id="insert" parameterType="com.lzs.PersonalWeb.model.User" >
    insert into user (id, name, ename, 
      sex, height, birth, constellation, 
      hobby, QQ, education, 
      BG, phone, email)
    values (#{id,jdbcType=INTEGER}, #{name,jdbcType=VARCHAR}, #{ename,jdbcType=VARCHAR}, 
      #{sex,jdbcType=VARCHAR}, #{height,jdbcType=DOUBLE}, #{birth,jdbcType=DATE}, #{constellation,jdbcType=VARCHAR}, 
      #{hobby,jdbcType=VARCHAR}, #{qq,jdbcType=VARCHAR}, #{education,jdbcType=VARCHAR}, 
      #{bg,jdbcType=VARCHAR}, #{phone,jdbcType=VARCHAR}, #{email,jdbcType=VARCHAR})
  </insert>
  <insert id="insertSelective" parameterType="com.lzs.PersonalWeb.model.User" >
    insert into user
    <trim prefix="(" suffix=")" suffixOverrides="," >
      <if test="id != null" >
        id,
      </if>
      <if test="name != null" >
        name,
      </if>
      <if test="ename != null" >
        ename,
      </if>
      <if test="sex != null" >
        sex,
      </if>
      <if test="height != null" >
        height,
      </if>
      <if test="birth != null" >
        birth,
      </if>
      <if test="constellation != null" >
        constellation,
      </if>
      <if test="hobby != null" >
        hobby,
      </if>
      <if test="qq != null" >
        QQ,
      </if>
      <if test="education != null" >
        education,
      </if>
      <if test="bg != null" >
        BG,
      </if>
      <if test="phone != null" >
        phone,
      </if>
      <if test="email != null" >
        email,
      </if>
    </trim>
    <trim prefix="values (" suffix=")" suffixOverrides="," >
      <if test="id != null" >
        #{id,jdbcType=INTEGER},
      </if>
      <if test="name != null" >
        #{name,jdbcType=VARCHAR},
      </if>
      <if test="ename != null" >
        #{ename,jdbcType=VARCHAR},
      </if>
      <if test="sex != null" >
        #{sex,jdbcType=VARCHAR},
      </if>
      <if test="height != null" >
        #{height,jdbcType=DOUBLE},
      </if>
      <if test="birth != null" >
        #{birth,jdbcType=DATE},
      </if>
      <if test="constellation != null" >
        #{constellation,jdbcType=VARCHAR},
      </if>
      <if test="hobby != null" >
        #{hobby,jdbcType=VARCHAR},
      </if>
      <if test="qq != null" >
        #{qq,jdbcType=VARCHAR},
      </if>
      <if test="education != null" >
        #{education,jdbcType=VARCHAR},
      </if>
      <if test="bg != null" >
        #{bg,jdbcType=VARCHAR},
      </if>
      <if test="phone != null" >
        #{phone,jdbcType=VARCHAR},
      </if>
      <if test="email != null" >
        #{email,jdbcType=VARCHAR},
      </if>
    </trim>
  </insert>
  <update id="updateByPrimaryKeySelective" parameterType="com.lzs.PersonalWeb.model.User" >
    update user
    <set >
      <if test="name != null" >
        name = #{name,jdbcType=VARCHAR},
      </if>
      <if test="ename != null" >
        ename = #{ename,jdbcType=VARCHAR},
      </if>
      <if test="sex != null" >
        sex = #{sex,jdbcType=VARCHAR},
      </if>
      <if test="height != null" >
        height = #{height,jdbcType=DOUBLE},
      </if>
      <if test="birth != null" >
        birth = #{birth,jdbcType=DATE},
      </if>
      <if test="constellation != null" >
        constellation = #{constellation,jdbcType=VARCHAR},
      </if>
      <if test="hobby != null" >
        hobby = #{hobby,jdbcType=VARCHAR},
      </if>
      <if test="qq != null" >
        QQ = #{qq,jdbcType=VARCHAR},
      </if>
      <if test="education != null" >
        education = #{education,jdbcType=VARCHAR},
      </if>
      <if test="bg != null" >
        BG = #{bg,jdbcType=VARCHAR},
      </if>
      <if test="phone != null" >
        phone = #{phone,jdbcType=VARCHAR},
      </if>
      <if test="email != null" >
        email = #{email,jdbcType=VARCHAR},
      </if>
    </set>
    where id = #{id,jdbcType=INTEGER}
  </update>
  <update id="updateByPrimaryKey" parameterType="com.lzs.PersonalWeb.model.User" >
    update user
    set name = #{name,jdbcType=VARCHAR},
      ename = #{ename,jdbcType=VARCHAR},
      sex = #{sex,jdbcType=VARCHAR},
      height = #{height,jdbcType=DOUBLE},
      birth = #{birth,jdbcType=DATE},
      constellation = #{constellation,jdbcType=VARCHAR},
      hobby = #{hobby,jdbcType=VARCHAR},
      QQ = #{qq,jdbcType=VARCHAR},
      education = #{education,jdbcType=VARCHAR},
      BG = #{bg,jdbcType=VARCHAR},
      phone = #{phone,jdbcType=VARCHAR},
      email = #{email,jdbcType=VARCHAR}
    where id = #{id,jdbcType=INTEGER}
  </update>
</mapper>

UserService.java

package com.lzs.PersonalWeb.service;

import com.lzs.PersonalWeb.model.User;

public interface UserService {
	
	int deleteByPrimaryKey(Integer id);

    int insert(User record);

    int insertSelective(User record);

    User selectByPrimaryKey(Integer id);

    int updateByPrimaryKeySelective(User record);

    int updateByPrimaryKey(User record);

}

UserServiceImpl.java

package com.lzs.PersonalWeb.service.impl;

import javax.annotation.Resource;

import org.springframework.stereotype.Service;

import com.lzs.PersonalWeb.dao.UserMapper;
import com.lzs.PersonalWeb.model.User;
import com.lzs.PersonalWeb.service.UserService;

@Service
public class UserServiceImpl implements UserService{
	
	@Resource
	UserMapper userMapper;

	@Override
	public int deleteByPrimaryKey(Integer id) {
		return userMapper.deleteByPrimaryKey(id);
	}

	@Override
	public int insert(User record) {
		return userMapper.insert(record);
	}

	@Override
	public int insertSelective(User record) {
		return userMapper.insertSelective(record);
	}

	@Override
	public User selectByPrimaryKey(Integer id) {
		return userMapper.selectByPrimaryKey(id);
	}

	@Override
	public int updateByPrimaryKeySelective(User record) {
		return userMapper.updateByPrimaryKeySelective(record);
	}

	@Override
	public int updateByPrimaryKey(User record) {
		return userMapper.updateByPrimaryKey(record);
	}
	
	

}

PageController.java

package com.lzs.PersonalWeb.controller;

import javax.annotation.Resource;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

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

import com.lzs.PersonalWeb.model.User;
import com.lzs.PersonalWeb.service.UserService;
import com.sun.tools.internal.ws.processor.model.Model;

@Controller
public class PageController {
	
	@Resource
	private UserService userService;

	@RequestMapping("/index")
	public String index(Model model) {
		return "main";//spring-mvc.xml中自动添加头尾/WEB-INF/jsp/。。。.jsp
	}

	@RequestMapping("/welcome")
	public String welcome(HttpServletRequest requert,HttpServletResponse response,
			Model model) {
		System.out.println("selectUser");

		String id = requert.getParameter("id");
		User user = userService.selectByPrimaryKey(Integer.valueOf(id));
		return "welcome";//spring-mvc.xml中自动添加头尾/WEB-INF/jsp/。。。.jsp
	}

}

main.jsp

<%@ page language="java" contentType="text/html; charset=utf-8"
	pageEncoding="utf-8"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
<title>Insert title here</title>
</head>
<body>
	hello world!你好世界！
	<button οnclick="toPage()">跳转到welcome页面</button>
</body>
<script>
function toPage() {
	window.location.href = 'rest/welcome?id=1';
}
</script>
</html>

welcome.jsp

<%@ page language="java" contentType="text/html; charset=utf-8"
	pageEncoding="utf-8"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
<title>test</title>
</head>
<body>
	这是welcome页面
	<input id="userName" value="${user.name}">
</body>
</html>

最终项目树：

（这个博客编辑器让我想死！）

来源：CSDN

作者：半生瓜H

链接：https://blog.csdn.net/qq_31874947/article/details/78478634