Maven+SSM框架(Spring+SpringMVC+MyBatis)(二)

1.基本概念

 

2.開發環境搭建css

 

3.Maven Web項目建立html

 

4.SSM整合java

這次整合我分兩個配置文件:mysql

  1)分別是spring-mybatis.xml,包含spring和mybatis的配置文件,程序員

  2)還有個是spring-mvc的配置文件,web

  3)此外有2個資源文件:jdbc.propertis和log4j.propertiesspring

如下是框架版本及來源sql

  Spring 4.0.2 RELEASE(PS:無需手動下載,Maven會自動下)數據庫

  Spring MVC 4.0.2 RELEASE(PS:無需手動下載,Maven會自動下)apache

  MyBatis 3.2.6

 

*打開 xml 文件的代碼提示功能 

打 開 Eclipse 依次選擇 Window > Preferences > Xml > Xml Files > Editor > Content Assist > Auto activation > Prompt when these characters are inserted,設置框中默認是 <=: ,改爲<=:qwertyuioplkjhgfdsazxcvbnm就ok了。

 

下面是項目完整結構,先有個印象

4.1 Maven引入須要的jar包

爲了方便後面說的時候不須要引入JAR包,我這裏直接給出全部須要的JAR包,這都是基本的JAR包,每一個包的是幹什麼的都有註釋,就再也不多說了

pom.xml

 

複製代碼
<properties>
       <!-- spring版本號 -->
       <spring.version>4.0.2.RELEASE</spring.version>
       <!-- mybatis版本號 -->
     <mybatis.version>3.2.6</mybatis.version>
     <!-- log4j日誌文件管理包版本 -->
     <slf4j.version>1.7.7</slf4j.version>
     <log4j.version>1.2.17</log4j.version>
   </properties>
   <dependencies>
     <dependency>
       <groupId>junit</groupId>
       <artifactId>junit</artifactId>
       <version>3.8.1</version>
       <scope>test</scope>
     </dependency>
     <!-- 導入java ee jar包(能夠去除index.jsp報錯) -->
     <dependency>
         <groupId>javax</groupId>
         <artifactId>javaee-api</artifactId>
         <version>7.0</version>
     </dependency>
     <dependency>
         <groupId>junit</groupId>
         <artifactId>junit</artifactId>
         <version>4.11</version>
         <!-- 表示開發的時候引入,發佈的時候不會加載此包 -->
         <scope>test</scope>
     </dependency>
     <!-- spring核心包 -->
     <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-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>
     <!-- 導入Mysql數據庫連接jar包 -->
     <dependency>
         <groupId>mysql</groupId>
         <artifactId>mysql-connector-java</artifactId>
         <version>5.1.30</version>
     </dependency>
     <!-- 導入dbcp的jar包,用來在applicationContext.xml中配置數據庫 -->
     <dependency>
         <groupId>commons-dbcp</groupId>
         <artifactId>commons-dbcp</artifactId>
         <version>1.2.2</version>
     </dependency>
     <!-- JSTL標籤類 -->
     <dependency>
         <groupId>jstl</groupId>
         <artifactId>jstl</artifactId>
         <version>1.2</version>
     </dependency>
     <!-- 日誌文件管理包 -->
     <!-- log start -->
     <dependency>
         <groupId>log4j</groupId>
         <artifactId>log4j</artifactId>
         <version>${log4j.version}</version>
     </dependency>
     <!-- 格式化對象,方便輸出日誌 -->
     <dependency>
         <groupId>com.alibaba</groupId>
         <artifactId>fastjson</artifactId>
         <version>1.1.41</version>
     </dependency>
     <dependency>
         <groupId>org.slf4j</groupId>
         <artifactId>slf4j-api</artifactId>
         <version>${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>
     <!-- 上傳組件包 -->
     <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>hongceshi</finalName>
     <plugins>
      <plugin>
         <groupId>org.apache.maven.plugins</groupId>
         <artifactId>maven-compiler-plugin</artifactId>
         <version>3.5.1</version>
         <configuration>
             <source>1.8</source>
             <target>1.8</target>
             <encoding>UTF-8</encoding>
         </configuration>
      </plugin>
   </plugins>
   </build>
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4.2 Spring與MyBatis的整合

4.1的jar包引入以後,首先進行Spring和MyBatis整合,而後再進行JUnit測試,先看一個項目結構圖:

4.2.1 創建JDBC屬性文件(有背景顏色部分需根據本身信息修改)

jdbc.properties

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 driver=com.mysql.jdbc.Driver
 url=jdbc:mysql://127.0.0.1:3306/ceshi?useUnicode=true&characterEncoding=UTF-8
 username=root
 password=root
 #定義初始鏈接數
 initialSize=0
 #定義最大鏈接數
 maxActive=20
 #定義最大空閒
 maxIdle=20
 #定義最小空閒
 minIdle=1
 #定義最長等待時間
 maxWait=60000
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4.2.2 Log4j的配置(跳過此步也沒影響)

爲了方便調試,通常都會使用日誌來輸出信息,Log4j是Apache的一個開放源代碼項目,經過使用Log4j,咱們能夠控制日誌信息輸送的目的地是控制檯、文件、GUI組件,甚至是套接口服務器、NT的事件記錄器、UNIX Syslog守護進程等;咱們也能夠控制每一條日誌的輸出格式;經過定義每一條日誌信息的級別,咱們可以更加細緻地控制日誌的生成過程。
Log4j的配置很簡單,並且也是通用的,下面給出一個基本的配置,換到其餘項目中也無需作多大的調整,若是想作調整或者想了解Log4j的各類配置,能夠參考:Log4j配置詳解 

log4j.properties

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#定義LOG輸出級別
 log4j.rootLogger=INFO,Console,File
 #定義日誌輸出目的地爲控制檯
 log4j.appender.Console=org.apache.log4j.ConsoleAppender
 log4j.appender.Console.Target=System.out
 #能夠靈活地指定日誌輸出格式,下面一行是指定具體的格式
 log4j.appender.Console.layout = org.apache.log4j.PatternLayout
 log4j.appender.Console.layout.ConversionPattern=[%c] - %m%n
 
 #文件大小到達指定尺寸的時候產生一個新的文件
 log4j.appender.File = org.apache.log4j.RollingFileAppender
 #指定輸出目錄
 log4j.appender.File.File = logs/springmvcMybist/ssm.log
 #定義文件最大大小
 log4j.appender.File.MaxFileSize = 10MB
 #輸出因此日誌,若是換成DEBUG表示輸出DEBUG以上級別日誌
 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
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4.2.三、創建spring-mybatis.xml配置文件

這個文件就是用來完成spring和mybatis的整合的。這裏面也沒多少行配置,主要的就是自動掃描全部package,自動注入,配置數據庫

spring-mybatis.xml

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<?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-4.0.xsd  
                         http://www.springframework.org/schema/context  
                         http://www.springframework.org/schema/context/spring-context-4.0.xsd  
                         http://www.springframework.org/schema/mvc  
                         http://www.springframework.org/schema/mvc/spring-mvc-4.0.xsd">
     <!-- 自動掃描 -->
     <context:component-scan base-package="hzm.ssm" />
 
     <!-- 引入配置文件 -->
     <bean id="propertyConfigurer"
         class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer">
         <property name="location" value="classpath:jdbc.properties" />
     </bean>
 
     <bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource"
         destroy-method="close">
         <property name="driverClassName" value="${driver}" />
         <property name="url" value="${url}" />
         <property name="username" value="${username}" />
         <property name="password" value="${password}" />
         <!-- 初始化鏈接大小 -->
         <property name="initialSize" value="${initialSize}"></property>
         <!-- 鏈接池最大數量 -->
         <property name="maxActive" value="${maxActive}"></property>
         <!-- 鏈接池最大空閒 -->
         <property name="maxIdle" value="${maxIdle}"></property>
         <!-- 鏈接池最小空閒 -->
         <property name="minIdle" value="${minIdle}"></property>
         <!-- 獲取鏈接最大等待時間 -->
         <property name="maxWait" value="${maxWait}"></property>
     </bean>
 
     <!-- spring和MyBatis完美整合,不須要mybatis的配置映射文件 -->
     <bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
         <property name="dataSource" ref="dataSource" />
         <!-- 自動掃描mapping.xml文件 -->
         <property name="mapperLocations" value="classpath:hzm/ssm/mapping/*.xml"></property>
     </bean>
 
     <!-- DAO接口所在包名,Spring會自動查找其下的類 -->
     <bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
         <property name="basePackage" value="hzm.ssm.dao" />
         <property name="sqlSessionFactoryBeanName" value="sqlSessionFactory"></property>
     </bean>
 
     <!-- (事務管理)transaction manager, use JtaTransactionManager for global tx -->
     <bean id="transactionManager"
         class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
         <property name="dataSource" ref="dataSource" />
     </bean>
 </beans>
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4.2.四、JUnit測試

通過以上步驟(log4j不配也沒影響),咱們已經完成了Spring和mybatis的整合,這樣咱們就能夠編寫一段測試代碼來試試是否成功了。

4.2.4.1 建立測試用表

既然咱們須要測試,那麼咱們就須要創建在數據庫中創建一個測試表,這個表建的很簡單,SQL語句爲:

Mysql新建數據庫,執行下面語句

複製代碼
 #
 # Structure for table "user_t"
 #
 
 DROP TABLE IF EXISTS `user_t`;
 CREATE TABLE `user_t` (
   `id` int(11) NOT NULL AUTO_INCREMENT,
   `user_name` varchar(40) NOT NULL,
   `password` varchar(255) NOT NULL,
   `age` int(4) NOT NULL,
   PRIMARY KEY (`id`)
 ) ENGINE=InnoDB AUTO_INCREMENT=2 DEFAULT CHARSET=utf8;
 
 #
 # Data for table "user_t"
 #
 
 INSERT INTO `user_t` VALUES (1,'測試','123456',24);
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4.2.4.二、利用MyBatis Generator自動建立代碼

隨便找個位置建文件夾(路徑最好都是英文),而後在裏面建個src文件夾(配置到generatorConfig.xml裏面,存放生成文件),下載下面那兩個jar包,並手動將generatorConfig.xml拷進去,最後在該文件夾下,執行下面的命令java -jar mybatis-generator-core-1.3.2.jar -configfile generatorConfig.xml -overwrite

,代碼就會生成到src文件夾裏(dao/vo/impl):

如下是該文件下所需文的截圖:

可到到此博客的文件下載:https://i.cnblogs.com/Files.aspx(和Hibernate逆向生成同樣,這裏也須要一個配置文件:)

generatorConfig.xml

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 <?xml version="1.0" encoding="UTF-8"?>
 <!DOCTYPE generatorConfiguration
 PUBLIC "-//mybatis.org//DTD MyBatis Generator Configuration 1.0//EN"
 "http://mybatis.org/dtd/mybatis-generator-config_1_0.dtd">
 <generatorConfiguration>
     <!-- 數據庫驅動 -->
     <classPathEntry location="mysql-connector-java-5.1.28.jar" />
     <context id="DB2Tables" targetRuntime="MyBatis3">
         <commentGenerator>
             <property name="suppressDate" value="true" />
             <!-- 是否去除自動生成的註釋 true:是 : false:否 -->
             <property name="suppressAllComments" value="true" />
         </commentGenerator>
         <!--數據庫連接URL,用戶名、密碼 -->
         <jdbcConnection driverClass="com.mysql.jdbc.Driver" connectionURL="jdbc:mysql://127.0.0.1:3306/ceshi" userId="root"
             password="root">
         </jdbcConnection>
         <javaTypeResolver>
             <property name="forceBigDecimals" value="false" />
         </javaTypeResolver>
         <!-- 生成模型的包名和位置 -->
         <javaModelGenerator targetPackage="hzm.ssm.vo" targetProject="src">
             <property name="enableSubPackages" value="true" />
             <property name="trimStrings" value="true" />
         </javaModelGenerator>
         <!-- 生成映射文件的包名和位置 -->
         <sqlMapGenerator targetPackage="hzm.ssm.mapping" targetProject="src">
             <property name="enableSubPackages" value="true" />
         </sqlMapGenerator>
         <!-- 生成DAO的包名和位置 -->
         <javaClientGenerator type="XMLMAPPER" targetPackage="hzm.ssm.dao" targetProject="src">
             <property name="enableSubPackages" value="true" />
         </javaClientGenerator>
         <!-- 要生成的表 tableName是數據庫中的表名或視圖名 domainObjectName是實體類名 -->
         <table tableName="user_t" domainObjectName="User"
             enableCountByExample="false" enableUpdateByExample="false"
             enableDeleteByExample="false" enableSelectByExample="false"
             selectByExampleQueryId="false"></table>
     </context>
 </generatorConfiguration>
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須要修改文件配置的地方我都已經把註釋標註出來了,這裏的相關路徑(如數據庫驅動包,生成對應的相關文件位置能夠自定義)不能帶有中文

上面配置文件中的:

 <!-- 要生成的表 tableName是數據庫中的表名或視圖名 domainObjectName是實體類名 -->
 <table tableName="user_t" domainObjectName="User"
     enableCountByExample="false" enableUpdateByExample="false"
     enableDeleteByExample="false" enableSelectByExample="false"
     selectByExampleQueryId="false"></table>

tableName和domainObjectName爲必選項,分別表明數據庫表名和生成的實體vo類名,其他的能夠自定義去選擇(通常狀況下均爲false)

使用方法介紹:

在該目錄按住Shift鍵,右鍵鼠標選擇"在此處打開命令窗口",複製粘貼生成語句的文件代碼便可。

執行後,src就生成了下面3個文件,複製到項目對應目錄下

vo:user.java

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package hzm.ssm.vo;
 
 public class User {
     private Integer id;
 
     private String userName;

    private String password;

    private Integer age;

    public Integer getId() {
        return id;
    }

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

    public String getUserName() {
        return userName;
    }

    public void setUserName(String userName) {
        this.userName = userName == null ? null : userName.trim();
    }

    public String getPassword() {
        return password;
    }

    public void setPassword(String password) {
        this.password = password == null ? null : password.trim();
    }

    public Integer getAge() {
        return age;
    }

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

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 package hzm.ssm.dao;
 
 import hzm.ssm.vo.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);
 }
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mapping:UserMapper.xml

複製代碼
 1 <?xml version="1.0" encoding="UTF-8" ?>
 2 <!DOCTYPE mapper PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN" "http://mybatis.org/dtd/mybatis-3-mapper.dtd" >
 3 <mapper namespace="hzm.ssm.dao.UserMapper" >
 4   <resultMap id="BaseResultMap" type="hzm.ssm.vo.User" >
 5     <id column="id" property="id" jdbcType="INTEGER" />
 6     <result column="user_name" property="userName" jdbcType="VARCHAR" />
 7     <result column="password" property="password" jdbcType="VARCHAR" />
 8     <result column="age" property="age" jdbcType="INTEGER" />
 9   </resultMap>
10   <sql id="Base_Column_List" >
11     id, user_name, password, age
12   </sql>
13   <select id="selectByPrimaryKey" resultMap="BaseResultMap" parameterType="java.lang.Integer" >
14     select 
15     <include refid="Base_Column_List" />
16     from user_t
17     where id = #{id,jdbcType=INTEGER}
18   </select>
19   <delete id="deleteByPrimaryKey" parameterType="java.lang.Integer" >
20     delete from user_t
21     where id = #{id,jdbcType=INTEGER}
22   </delete>
23   <insert id="insert" parameterType="hzm.ssm.vo.User" >
24     insert into user_t (id, user_name, password, 
25       age)
26     values (#{id,jdbcType=INTEGER}, #{userName,jdbcType=VARCHAR}, #{password,jdbcType=VARCHAR}, 
27       #{age,jdbcType=INTEGER})
28   </insert>
29   <insert id="insertSelective" parameterType="hzm.ssm.vo.User" >
30     insert into user_t
31     <trim prefix="(" suffix=")" suffixOverrides="," >
32       <if test="id != null" >
33         id,
34       </if>
35       <if test="userName != null" >
36         user_name,
37       </if>
38       <if test="password != null" >
39         password,
40       </if>
41       <if test="age != null" >
42         age,
43       </if>
44     </trim>
45     <trim prefix="values (" suffix=")" suffixOverrides="," >
46       <if test="id != null" >
47         #{id,jdbcType=INTEGER},
48       </if>
49       <if test="userName != null" >
50         #{userName,jdbcType=VARCHAR},
51       </if>
52       <if test="password != null" >
53         #{password,jdbcType=VARCHAR},
54       </if>
55       <if test="age != null" >
56         #{age,jdbcType=INTEGER},
57       </if>
58     </trim>
59   </insert>
60   <update id="updateByPrimaryKeySelective" parameterType="hzm.ssm.vo.User" >
61     update user_t
62     <set >
63       <if test="userName != null" >
64         user_name = #{userName,jdbcType=VARCHAR},
65       </if>
66       <if test="password != null" >
67         password = #{password,jdbcType=VARCHAR},
68       </if>
69       <if test="age != null" >
70         age = #{age,jdbcType=INTEGER},
71       </if>
72     </set>
73     where id = #{id,jdbcType=INTEGER}
74   </update>
75   <update id="updateByPrimaryKey" parameterType="hzm.ssm.vo.User" >
76     update user_t
77     set user_name = #{userName,jdbcType=VARCHAR},
78       password = #{password,jdbcType=VARCHAR},
79       age = #{age,jdbcType=INTEGER}
80     where id = #{id,jdbcType=INTEGER}
81   </update>
82 </mapper>
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如下手動建立:

IUserService.java

複製代碼
1 package hzm.ssm.service;
2 
3 import hzm.ssm.vo.User;
4 
5 public interface IUserService {
6     public User getUserById(int userId);
7 }
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UserService.java

複製代碼
 1 package hzm.ssm.service.impl;
 2 
 3 import javax.annotation.Resource;
 4 
 5 import org.springframework.stereotype.Service;
 6 
 7 import hzm.ssm.dao.UserMapper;
 8 import hzm.ssm.service.IUserService;
 9 import hzm.ssm.vo.User;
10 
11 @Service("userService")
12 public class UserService implements IUserService {
13     @Resource
14     private UserMapper userDao;
15 
16     public User getUserById(int userId) {
17         return this.userDao.selectByPrimaryKey(userId);
18     }
19 }
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4.2.4.四、創建測試類

測試類在src/test/java中創建,下面測試類中註釋掉的部分是不使用Spring時,通常狀況下的一種測試方法;若是使用了Spring那麼就可使用註解的方式來引入配置文件和類,而後再將service接口對象注入,就能夠進行測試了。若是測試成功,表示Spring和Mybatis已經整合成功了。輸出信息使用的是Log4j打印到控制檯

TestMyBatis.java

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 1 package hzm.ssm.testmybatis;
 2 
 3 import javax.annotation.Resource;
 4 
 5 import org.apache.log4j.Logger;
 6 import org.junit.Test;
 7 import org.junit.runner.RunWith;
 8 import org.springframework.test.context.ContextConfiguration;
 9 import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;
10 
11 import com.alibaba.fastjson.JSON;
12 
13 import hzm.ssm.service.IUserService;
14 import hzm.ssm.vo.User;
15 
16 @RunWith(SpringJUnit4ClassRunner.class) // 表示繼承了這個類
17 @ContextConfiguration(locations = { "classpath:spring-mybatis.xml" })
18 public class TestMyBatis {
19     private static Logger logger = Logger.getLogger(TestMyBatis.class);
20     @Resource
21     private IUserService userService = null;
22 
23     @Test
24     public void test() {
25         User user = userService.getUserById(1);
26         logger.info(user);
27         logger.info("user轉爲json");
28         logger.info(JSON.toJSONString(user));
29     }
30 }
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開始測試:

項目右鍵Maven->Update Project...(重點),等更新完,右擊項目->Run As->JUnit Test

4.三、整合SpringMVC

上面已經完成了2大框架的整合,SpringMVC的配置文件單獨放,而後在web.xml中配置整合

4.3.一、配置spring-mvc.xml

主要是自動掃描控制器,視圖模式,註解的啓動這三個

spring-mvc.xml

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 <?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-4.0.xsd  
                             http://www.springframework.org/schema/context  
                             http://www.springframework.org/schema/context/spring-context-4.0.xsd  
                             http://www.springframework.org/schema/mvc  
                             http://www.springframework.org/schema/mvc/spring-mvc-4.0.xsd">
 
     <!--避免IE執行AJAX時,返回JSON出現下載文件 -->
     <bean id="mappingJacksonHttpMessageConverter"
         class="org.springframework.http.converter.json.MappingJacksonHttpMessageConverter">
         <property name="supportedMediaTypes">
             <list>
                 <value>text/html;charset=UTF-8</value>
             </list>
         </property>
     </bean>
 
     <!-- 啓動SpringMVC的註解功能,完成請求和註解POJO的映射 -->
     <bean
         class="org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter">
         <property name="messageConverters">
             <list>
                 <!-- JSON轉換器 -->
                 <ref bean="mappingJacksonHttpMessageConverter" />    
             </list>
         </property>
     </bean>
 
     <!-- 對靜態資源的訪問 -->
     <!-- <mvc:resources mapping="/js/**" location="/js/" /> 
         <mvc:resources mapping="/css/**" location="/css/" /> -->
 
     <!-- 自動掃描該包,使SpringMVC認爲包下用了@controller註解的類是控制器 -->
     <context:component-scan base-package="hzm.ssm.controller" />
 
     <!-- 添加註解驅動 -->
     <mvc:annotation-driven enable-matrix-variables="true" />
     <!-- 容許對靜態資源文件的訪問 -->
 
     <mvc:default-servlet-handler />
 
     <!-- 定義跳轉的文件的先後綴 ,視圖模式配置 -->
     <bean
         class="org.springframework.web.servlet.view.InternalResourceViewResolver">
         <!-- 這裏的配置個人理解是自動給後面action的方法return的字符串加上前綴和後綴,變成一個 可用的url地址 -->
         <property name="prefix" value="/WEB-INF/jsp/" />
         <property name="suffix" value=".jsp" />
     </bean>
 
     <!-- 配置文件上傳,若是沒有使用文件上傳能夠不用配置,固然若是不配,那麼配置文件中也沒必要引入上傳組件包 -->
     <bean id="multipartResolver"
         class="org.springframework.web.multipart.commons.CommonsMultipartResolver">
         <!-- 默認編碼 -->
         <property name="defaultEncoding" value="UTF-8" />
         <!-- 文件大小最大值 -->
         <property name="maxUploadSize" value="10485760000" />
         <!-- 內存中的最大值 -->
         <property name="maxInMemorySize" value="40960" />
     </bean>
 </beans>
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4.3.二、配置web.xml文件

這裏面對spring-mybatis.xml的引入以及配置的spring-mvc的Servlet就是爲了完成SSM整合,以前2框架整合不須要在此處進行任何配置。配置同樣有詳細註釋,很少解釋了。

web.xml

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 <?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>
     
     <!-- 編碼過濾器 -->
     <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監聽器 -->
     <listener>
         <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
     </listener>
     
     <!-- 防止Spring內存溢出監聽器 -->
     <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>
         <!-- 此處能夠能夠配置成*.do,對應struts的後綴習慣 -->
         <url-pattern>/</url-pattern>
     </servlet-mapping>
     
     <welcome-file-list>
         <welcome-file>/index.html</welcome-file>
         <welcome-file>/index.jsp</welcome-file>
     </welcome-file-list>
 </web-app>
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4.3.三、測試

至此已經完成了SSM三大框架的整合了,接下來測試一下,若是成功了,那麼恭喜你,若是失敗了,繼續調試吧,做爲程序員就是不停的與BUG作鬥爭!

4.3.3.一、新建jsp頁面

User.jsp   此頁面僅輸出一下用戶名,完成一個完整的簡單流程

User.jsp

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 1 <%@ page language="java" contentType="text/html; charset=UTF-8"
 2     pageEncoding="UTF-8"%>
 3 <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
 4 <html>
 5 <head>
 6 <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
 7 <title>測試</title>
 8 </head>
 9 <body>${user.userName}
10 </body>
11 </html>
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4.3.3.二、創建UserController類

UserController.java

複製代碼
 1 package hzm.ssm.controller;
 2 
 3 import javax.annotation.Resource;
 4 import javax.servlet.http.HttpServletRequest;
 5 
 6 import org.springframework.stereotype.Controller;
 7 import org.springframework.ui.Model;
 8 import org.springframework.web.bind.annotation.RequestMapping;
 9 
10 import hzm.ssm.service.IUserService;
11 import hzm.ssm.vo.User;
12 
13 @Controller
14 @RequestMapping("/user")
15 public class UserController {
16 
17     @Resource
18     private IUserService userService;
19 
20     @RequestMapping("/showUser")
21     public String toIndex(HttpServletRequest request, Model model) {
22         int userId = Integer.parseInt(request.getParameter("id"));
23         User user = this.userService.getUserById(userId);
24         model.addAttribute("user", user);
25         return "User";
26     }
27 }
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4.3.3.三、部署項目

點擊Finish,啓動項目,瀏覽器輸入http://localhost:8080/hongceshi/user/showUser?id=1

至此SSM框架整合成功。

 

可是,有一個問題:

緣由就是編譯時沒有複製依賴包到WEB-INF/lib裏,編譯時也沒有生成lib文件夾

完美解決辦法:

在該目錄下執行:

cmd命令(根據Java Build Path的列表得知,只要不改動包,就不須要再次運行此命令) 1 mvn eclipse:eclipse -Dwtpversion=2.0 

至此clean均可以運行。

#定義LOG輸出級別 log4j.rootLogger=INFO,Console,File #定義日誌輸出目的地爲控制檯 log4j.appender.Console=org.apache.log4j.ConsoleAppender log4j.appender.Console.Target=System.out #能夠靈活地指定日誌輸出格式,下面一行是指定具體的格式 log4j.appender.Console.layout = org.apache.log4j.PatternLayout log4j.appender.Console.layout.ConversionPattern=[%c] - %m%n  #文件大小到達指定尺寸的時候產生一個新的文件 log4j.appender.File = org.apache.log4j.RollingFileAppender #指定輸出目錄 log4j.appender.File.File = logs/springmvcMybist/ssm.log #定義文件最大大小 log4j.appender.File.MaxFileSize = 10MB #輸出因此日誌,若是換成DEBUG表示輸出DEBUG以上級別日誌 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

做者: howtosay
    
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