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吉林快_三平臺搭建項目實踐教程

我們 efault eclips 日誌文件管理 archetype javabean parseint obj 開源項目

吉林快_三平臺搭建是一個開源框架,Spring是於2003 年興起的一個輕量級的Java 開發框架,由Rod Johnson 在其著作Expert One-On-One J2EE Development and Design中闡述的部分理念和原型衍生而來。它是為了解決企業應用開發的復雜性而創建的。Spring使用基本的JavaBean來完成以前只可能由EJB完成的事情。然而,Spring的用途不僅限於服務器端的開發。從簡單性、可測試性和松耦合的角度而言,任何Java應用都可以從Spring中受益。 簡單來說,Spring是一個輕量級的控制反轉(IoC)和面向切面(AOP)的容器框架。

1.2、SpringMVC

    Spring MVC屬於SpringFrameWork的後續產品,已經融合在Spring Web Flow裏面。Spring MVC 分離了控制器、模型對象、分派器以及處理程序對象的角色,這種分離讓它們更容易進行定制。

1.3、MyBatis

   MyBatis 本是apache的一個開源項目iBatis, 2010年這個項目由apache software foundation 遷移到了google code,並且改名為MyBatis 。MyBatis是一個基於Java的持久層框架。iBATIS提供的持久層框架包括SQL Maps和Data Access Objects(DAO)MyBatis 消除了幾乎所有的JDBC代碼和參數的手工設置以及結果集的檢索。MyBatis 使用簡單的 XML或註解用於配置和原始映射,將接口和 Java 的POJOs(Plain Old Java Objects,普通的 Java對象)映射成數據庫中的記錄。

2、開發環境搭建以及創建Maven Web項目

參看之前的博文:http://www.cnblogs.com/zyw-205520/p/4767633.html

3、SSM整合

下面主要介紹三大框架的整合,至於環境的搭建以及項目的創建,參看上面的博文。這次整合我分了2個配置文件,分別是spring-mybatis.xml,包含spring和mybatis的配置文件,還有個是spring-mvc的配置文件,此外有2個資源文件:jdbc.propertis和log4j.properties。完整目錄結構如下(最後附上源碼下載地址):

使用框架的版本:

   Spring 4.0.2 RELEASE

   Spring MVC 4.0.2 RELEASE

   MyBatis 3.2.6

3.1、Maven引入需要的JAR包

在pom.xml中引入jar包

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<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>com.javen.maven01</groupId>
<artifactId>maven01</artifactId>
<packaging>war</packaging>
<version>0.0.1-SNAPSHOT</version>
<name>maven01 Maven Webapp</name>
<url>http://maven.apache.org</url>

<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>
         <!-- 表示開發的時候引入,發布的時候不會加載此包 -->  
        <scope>test</scope>
    </dependency>
    <!-- <dependency>
        <groupId>javax.servlet</groupId>
        <artifactId>javax.servlet-api</artifactId>
        <version>3.1.0</version>
    </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java ee jar 包 -->  
    <dependency>  
        <groupId>javax</groupId>  
        <artifactId>javaee-api</artifactId>  
        <version>7.0</version>  
    </dependency>  

     <!-- 導入Mysql數據庫鏈接jar包 -->  
    <dependency>  
        <groupId>mysql</groupId>  
        <artifactId>mysql-connector-java</artifactId>  
        <version>5.1.36</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標簽類 -->  
    <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>maven01</finalName>
    <plugins>
        <plugin>
            <groupId>org.eclipse.jetty</groupId>
            <artifactId>jetty-maven-plugin</artifactId>
            <version>9.2.8.v20150217</version>
            <configuration>
                <httpConnector>
                    <port>80</port>
                </httpConnector>
                <stopKey>shutdown</stopKey>
                <stopPort>9966</stopPort>
            </configuration>
        </plugin>
    </plugins>
</build>

</project>

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3.2、整合SpringMVC
3.2.1、配置spring-mvc.xml

配置裏面的註釋也很詳細,主要是自動掃描控制器,視圖模式,註解的啟動這三個。

復制代碼

<?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">

text/html;charset=UTF-8 復制代碼 3.2.2、配置web.xml文件 配置的spring-mvc的Servlet就是為了完成SpringMVC+MAVEN的整合。 web.xml 復制代碼 Archetype Created Web Application encodingFilter org.springframework.web.filter.CharacterEncodingFilter true encoding UTF-8 encodingFilter /* SpringMVC org.springframework.web.servlet.DispatcherServlet contextConfigLocation classpath:spring-mvc.xml 1 true SpringMVC / /index.jsp 復制代碼 3.2.3、Log4j的配置 為了方便調試,一般都會使用日誌來輸出信息,Log4j是Apache的一個開放源代碼項目,通過使用Log4j,我們可以控制日誌信息輸送的目的地是控制臺、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;我們也可以控制每一條日誌的輸出格式;通過定義每一條日誌信息的級別,我們能夠更加細致地控制日誌的生成過程。 Log4j的配置很簡單,而且也是通用的,下面給出一個基本的配置,換到其他項目中也無需做多大的調整,如果想做調整或者想了解Log4j的各種配置,參看我轉載的一篇博文,很詳細:http://blog.csdn.net/zhshulin/article/details/37937365 下面給出配置文件目錄: log4j.properties 復制代碼 log4j.rootLogger=INFO,Console,File #定義日誌輸出目的地為控制臺 log4j.appender.Console=org.apache.log4j.ConsoleAppender log4j.appender.Console.Target=System.out #可以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/ssm.log #定義文件最大大小 log4j.appender.File.MaxFileSize = 10MB # 輸出所以日誌,如果換成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 復制代碼 3.2.4、使用Jetty測試 復制代碼 package com.javen.model; 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; } @Override public String toString() { return "User [id=" + id + ", userName=" + userName + ", password=" + password + ", age=" + age + "]"; } } 復制代碼 復制代碼 package com.javen.controller; import javax.servlet.http.HttpServletRequest; import org.slf4j.Logger; import org.slf4j.LoggerFactory; import org.springframework.stereotype.Controller; import org.springframework.ui.Model; import org.springframework.web.bind.annotation.RequestMapping; import org.springframework.web.bind.annotation.RequestMethod; import com.javen.model.User; @Controller @RequestMapping("/user") // /user/** public class UserController { private static Logger log=LoggerFactory.getLogger(UserController.class); // /user/test?id=1 @RequestMapping(value="/test",method=RequestMethod.GET) public String test(HttpServletRequest request,Model model){ int userId = Integer.parseInt(request.getParameter("id")); System.out.println("userId:"+userId); User user=null; if (userId==1) { user = new User(); user.setAge(11); user.setId(1); user.setPassword("123"); user.setUserName("javen"); } log.debug(user.toString()); model.addAttribute("user", user); return "index"; } } 復制代碼 在瀏覽器中輸入:http://localhost/user/test?id=1 到此 SpringMVC+Maven 整合完畢 3.3 Spring與MyBatis的整合 取消3.2.2 web.xml中註釋的代碼 3.3.1、建立JDBC屬性文件 jdbc.properties(文件編碼修改為utf-8) 復制代碼 driver=com.mysql.jdbc.Driver url=jdbc:mysql://localhost:3306/maven username=root password=root #定義初始連接數 initialSize=0 #定義最大連接數 maxActive=20 #定義最大空閑 maxIdle=20 #定義最小空閑 minIdle=1 #定義最長等待時間 maxWait=60000 復制代碼 此時的目錄結構為 3.3.2、建立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,自動註入,配置數據庫。註釋也很詳細,大家看看就明白了。 spring-mybatis.xml 復制代碼 復制代碼 3.4、JUnit測試 經過以上步驟,我們已經完成了Spring和mybatis的整合,這樣我們就可以編寫一段測試代碼來試試是否成功了。 3.4.1、創建測試用表 既然我們需要測試,那麽我們就需要建立在數據庫中建立一個測試表,這個表建的很簡單,SQL語句為: 復制代碼 -- ---------------------------- -- Table structure for `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=3 DEFAULT CHARSET=utf8; -- ---------------------------- -- Records of user_t -- ---------------------------- INSERT INTO `user_t` VALUES (‘1‘, ‘測試‘, ‘345‘, ‘24‘); INSERT INTO `user_t` VALUES (‘2‘, ‘javen‘, ‘123‘, ‘10‘); 復制代碼 3.4.2、利用MyBatis Generator自動創建代碼 參考博文:http://blog.csdn.net/zhshulin/article/details/23912615 這個可根據表自動創建實體類、MyBatis映射文件以及DAO接口,當然,我習慣將生成的接口名改為IUserDao,而不是直接用它生成的UserMapper。如果不想麻煩就可以不改。完成後將文件復制到工程中。如圖: 3.4.3、建立Service接口和實現類 下面給出具體的內容: IUserService.jave 復制代碼 package com.javen.service; import com.javen.model.User; public interface IUserService { public User getUserById(int userId); } 復制代碼 UserServiceImpl.java 復制代碼 package com.javen.service.impl; import javax.annotation.Resource; import org.springframework.stereotype.Service; import com.javen.dao.IUserDao; import com.javen.model.User; import com.javen.service.IUserService; @Service("userService") public class UserServiceImpl implements IUserService { @Resource private IUserDao userDao; public User getUserById(int userId) { // TODO Auto-generated method stub return this.userDao.selectByPrimaryKey(userId); } } 復制代碼 3.4.4、建立測試類 測試類在src/test/java中建立,下面測試類中註釋掉的部分是不使用Spring時,一般情況下的一種測試方法;如果使用了Spring那麽就可以使用註解的方式來引入配置文件和類,然後再將service接口對象註入,就可以進行測試了。 如果測試成功,表示Spring和Mybatis已經整合成功了。輸出信息使用的是Log4j打印到控制臺。 復制代碼 package com.javen.testmybatis; import javax.annotation.Resource; import org.apache.log4j.Logger; import org.junit.Test; import org.junit.runner.RunWith; import org.springframework.test.context.ContextConfiguration; import org.springframework.test.context.junit4.SpringJUnit4Cla***unner; import com.alibaba.fastjson.JSON; import com.javen.model.User; import com.javen.service.IUserService; @RunWith(SpringJUnit4Cla***unner.class) //表示繼承了SpringJUnit4Cla***unner類 @ContextConfiguration(locations = {"classpath:spring-mybatis.xml"}) public class TestMyBatis { private static Logger logger = Logger.getLogger(TestMyBatis.class); // private ApplicationContext ac = null; @Resource private IUserService userService = null; // @Before // public void before() { // ac = new ClassPathXmlApplicationContext("applicationContext.xml"); // userService = (IUserService) ac.getBean("userService"); // } @Test public void test1() { User user = userService.getUserById(1); // System.out.println(user.getUserName()); // logger.info("值:"+user.getUserName()); logger.info(JSON.toJSONString(user)); } } 復制代碼 測試結果 3.4.5、建立UserController類 UserController.java 控制器 復制代碼 package com.javen.controller; import java.io.File; import java.io.IOException; import java.util.Map; import javax.annotation.Resource; import javax.servlet.http.HttpServletRequest; import org.apache.commons.io.FileUtils; import org.slf4j.Logger; import org.slf4j.LoggerFactory; import org.springframework.http.HttpStatus; import org.springframework.http.ResponseEntity; import org.springframework.stereotype.Controller; import org.springframework.ui.Model; 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.RequestParam; import org.springframework.web.bind.annotation.ResponseBody; import org.springframework.web.multipart.MultipartFile; import com.javen.model.User; import com.javen.service.IUserService; @Controller @RequestMapping("/user") // /user/** public class UserController { private static Logger log=LoggerFactory.getLogger(UserController.class); @Resource private IUserService userService; // /user/test?id=1 @RequestMapping(value="/test",method=RequestMethod.GET) public String test(HttpServletRequest request,Model model){ int userId = Integer.parseInt(request.getParameter("id")); System.out.println("userId:"+userId); User user=null; if (userId==1) { user = new User(); user.setAge(11); user.setId(1); user.setPassword("123"); user.setUserName("javen"); } log.debug(user.toString()); model.addAttribute("user", user); return "index"; } // /user/showUser?id=1 @RequestMapping(value="/showUser",method=RequestMethod.GET) public String toIndex(HttpServletRequest request,Model model){ int userId = Integer.parseInt(request.getParameter("id")); System.out.println("userId:"+userId); User user = this.userService.getUserById(userId); log.debug(user.toString()); model.addAttribute("user", user); return "showUser"; } // /user/showUser2?id=1 @RequestMapping(value="/showUser2",method=RequestMethod.GET) public String toIndex2(@RequestParam("id") String id,Model model){ int userId = Integer.parseInt(id); System.out.println("userId:"+userId); User user = this.userService.getUserById(userId); log.debug(user.toString()); model.addAttribute("user", user); return "showUser"; } // /user/showUser3/{id} @RequestMapping(value="/showUser3/{id}",method=RequestMethod.GET) public String toIndex3(@PathVariable("id")String id,Map model){ int userId = Integer.parseInt(id); System.out.println("userId:"+userId); User user = this.userService.getUserById(userId); log.debug(user.toString()); model.put("user", user); return "showUser"; } // /user/{id} @RequestMapping(value="/{id}",method=RequestMethod.GET) public @ResponseBody User getUserInJson(@PathVariable String id,Map model){ int userId = Integer.parseInt(id); System.out.println("userId:"+userId); User user = this.userService.getUserById(userId); log.info(user.toString()); return user; } // /user/{id} @RequestMapping(value="/jsontype/{id}",method=RequestMethod.GET) public ResponseEntity getUserInJson2(@PathVariable String id,Map model){ int userId = Integer.parseInt(id); System.out.println("userId:"+userId); User user = this.userService.getUserById(userId); log.info(user.toString()); return new ResponseEntity(user,HttpStatus.OK); } //文件上傳、 @RequestMapping(value="/upload") public String showUploadPage(){ return "user_admin/file"; } @RequestMapping(value="/doUpload",method=RequestMethod.POST) public String doUploadFile(@RequestParam("file")MultipartFile file) throws IOException{ if (!file.isEmpty()) { log.info("Process file:{}",file.getOriginalFilename()); } FileUtils.copyInputStreamToFile(file.getInputStream(), new File("E:\\",System.currentTimeMillis()+file.getOriginalFilename())); return "succes"; } } 復制代碼 3.4.6、新建jsp頁面 file.jsp 復制代碼 <%@ page language="java" contentType="text/html; charset=utf-8" pageEncoding="utf-8"%> Insert title here

上傳文件

復制代碼 index.jsp

Hello World!

showUser.jsp 復制代碼 <%@ page language="java" import="java.util.*" pageEncoding="utf-8"%> 測試 ${user.userName}

吉林快_三平臺搭建項目實踐教程