Intellij IDEA中利用Maven搭建SSM專案
阿新 • • 發佈：2019-01-31
最近想學一下SSM框架，自己動手搭了一個，在這其中碰到了一些問題，總結如下：
1.mapper.xml配置檔案沒有被編譯。
自己把配置檔案放到了java資料夾下，最後發現配置檔案並沒有被編譯，最後發現是編譯器的問題，我用的IDE是Intellij，在Intellij中的 java資料夾下的xml檔案並不會被編譯，需要把xml檔案放到resources資料夾下，這個是Intellij的特性，需要注意。
2.資料庫連線方面的錯誤
3..在做springMVC的測試的時候出現頁面不跳轉的問題，最終這個問題的原因是JDK的版本太低，需要1.8的，自己的是1.7。這個問題自己找了很久，但最終還是解決了。
接下來看程式：
程式結構如下：
程式碼如下：
applicationContext.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:context="http://www.springframework.org/schema/context" xsi:schemaLocation="http://www.springframework.org/schema/beanshttp://www.springframework.org/schema/beans/spring-beans.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd"> <context:component-scan base-package="mapper"/> <context:component-scan base-package="serviceImp"/> <!--Spring通過一個 BeanPostProcessor 對 @Autowired 進行解析，所以要讓 @Autowired 起作用必須事先在 Spring 容器中宣告 AutowiredAnnotationBeanPostProcessor Bean--> <bean class="org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor"/> <!--<context:property-placeholder location="classpath:jdbc.properties"/>--> <bean id="propertyConfigurer" class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer"> <property name="locations"> <list> <value>classpath*:jdbc.properties</value> </list> </property> </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}"/> </bean> <bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean"> <property name="dataSource" ref="dataSource"/> <property name="configLocation" value="mybatis.cfg.xml"/> </bean> <bean class="org.mybatis.spring.mapper.MapperScannerConfigurer"> <property name="basePackage" value="mapper"/> <property name="sqlSessionFactoryBeanName" value="sqlSessionFactory"/> </bean> </beans>
mvc.xml:
<?xml version="1.0" encoding="UTF-8"?> <beans default-lazy-init="true" xmlns="http://www.springframework.org/schema/beans" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" 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"> <!--該標籤可以簡化springMVC的相關配置，自動註冊 RequestMappingHandlerMapping與RequestMappingHandleAdapter兩個bean， 這是springMVC為@Controller分發請求所必須的--> <mvc:annotation-driven/> <context:component-scan base-package="controller"/> <bean id="viewResolver" class="org.springframework.web.servlet.view.InternalResourceViewResolver"> <property name="prefix" value="/WEB-INF/"/> <property name="suffix" value=".jsp"/> </bean> <bean id="aa" class="org.springframework.web.multipart.commons.CommonsMultipartResolver"> <property name="defaultEncoding" value="utf-8"/> <property name="maxUploadSize" value="10485760000"/> <property name="maxInMemorySize" value="40960"/> </bean> <bean id="multipartResolver" class="org.springframework.web.multipart.commons.CommonsMultipartResolver"> <property name="defaultEncoding" value="UTF-8"/> </bean> <mvc:interceptors> <mvc:interceptor> <mvc:mapping path="/*"/> <bean class="interceptor.AuthorizationInterceptor"/> </mvc:interceptor> </mvc:interceptors> </beans>
jdbc.xml:
driver=com.mysql.jdbc.Driver url=jdbc:mysql://localhost:3306/ssm username=root password=root
mybatis.cfg.xml:
<?xml version="1.0" encoding="UTF-8"?> <!DOCTYPE configuration PUBLIC "-//mybatis.org//DTD Config 3.0//EN" "http://www.mybatis.org/dtd/mybatis-3-config.dtd"> <configuration> <typeAliases> <package name="vo"/> </typeAliases> <mappers> <package name="mapper"/> </mappers> </configuration>
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="mapper.UserMapper"> <select id="findUserById" parameterType="int" resultType="user"> SELECT * FROM USER WHERE id=#{id} </select> <select id="findUserByName" parameterType="String" resultType="user"> SELECT * FROM USER WHERE NAME =#{name} </select> <insert id="addUser" parameterType="user"> INSERT INTO USER (id,name,pwd) VALUE (#{id},#{name},#{pwd}) </insert> <delete id="deleteUser" parameterType="int"> DELETE FROM USER WHERE id = #{id} </delete> <update id="updateUser" parameterType="user"> UPDATE USER SET name = #{name},pwd = #{pwd} WHERE id = #{id} </update> </mapper>
UserController.java:
package controller; import common.GetApplication; import org.apache.commons.io.FileUtils; import org.springframework.http.HttpHeaders; import org.springframework.http.HttpStatus; import org.springframework.http.MediaType; import org.springframework.http.ResponseEntity; import org.springframework.stereotype.Component; import org.springframework.stereotype.Controller; import org.springframework.ui.Model; import org.springframework.web.bind.annotation.ModelAttribute; import org.springframework.web.bind.annotation.RequestMapping; import org.springframework.web.bind.annotation.RequestParam; import serviceImp.UserServiceImp; import vo.User; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpSession; import java.io.*; /** * Created on 2017/9/4. * Description: */ @Component @Controller public class UserController { private UserServiceImp userServiceImp; @RequestMapping("/login") public String login(@ModelAttribute User user) { userServiceImp = (UserServiceImp) GetApplication.getApplicationContext().getBean("userServiceImp"); User user01 = userServiceImp.getUser(user.getName()); if (user01 != null && user01.getPwd().equals(user.getPwd())) { return "upload"; } return "false"; } @RequestMapping("/upload") public String regist(HttpServletRequest request, @ModelAttribute User user, Model model) throws IOException { //獲取檔名 String fileName = user.getFile().getOriginalFilename(); //獲取上傳檔案的路徑 String path = request.getServletContext().getRealPath("/fileupload"); File filePath = new File(path, fileName); //判斷路徑是否存在 if (!filePath.getParentFile().exists()) { filePath.getParentFile().mkdirs(); } //將上傳檔案儲存到一個目標檔案當中 user.getFile().transferTo(new File(path + File.separator + fileName)); //將使用者新增到model model.addAttribute("user", user); return "userInfo"; } @RequestMapping(value = "/download") public ResponseEntity<byte[]> download(HttpServletRequest request, @RequestParam("filename") String filename, Model model) throws Exception { //下載檔案路徑 String path = request.getServletContext().getRealPath("/fileupload/"); File file = new File(path + File.separator + filename); HttpHeaders headers = new HttpHeaders(); //下載顯示的檔名，解決中文名稱亂碼問題 String downloadFielName = new String(filename.getBytes("UTF-8"), "iso-8859-1"); //通知瀏覽器以attachment（下載方式）開啟圖片 headers.setContentDispositionFormData("attachment", downloadFielName); //application/octet-stream ： 二進位制流資料（最常見的檔案下載）。 headers.setContentType(MediaType.APPLICATION_OCTET_STREAM); return new ResponseEntity<byte[]>(FileUtils.readFileToByteArray(file), headers, HttpStatus.CREATED); } }
UserMapper.java:
package mapper; import org.springframework.stereotype.Component; import org.springframework.stereotype.Service; import vo.User; /** * Created on 2017/8/29. * Description: */ @Component @Service public interface UserMapper { public void addUser(User user); public void deleteUser(int id); public void updateUser(User user); public User findUserById(int i) throws Exception; public User findUserByName(String name); }
UserService.java:
package service; import org.springframework.stereotype.Service; import vo.User; /** * Created on 2017/9/6. * Description: */ @Service public interface UserService { public User getUser(String name); }
UserServiceImp.java:
package serviceImp; import mapper.UserMapper; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.stereotype.Component; import org.springframework.stereotype.Service; import service.UserService; import vo.User; /** * Created on 2017/9/6. * Description: */ @Component @Service public class UserServiceImp implements UserService { @Autowired private UserMapper usermapper; public User getUser(String name) { User user = usermapper.findUserByName(name); return user; } public void registUser(User user){ usermapper.addUser(user); } }
User.java:
package vo; import org.springframework.web.multipart.commons.CommonsMultipartFile; import java.io.Serializable; /** * Created on 2017/8/29. * Description: */ public class User implements Serializable { private int id; private String name; private String pwd; private CommonsMultipartFile file; public CommonsMultipartFile getFile() { return file; } public void setFile(CommonsMultipartFile file) { this.file = file; } public int getId() { return id; } public void setId(int id) { this.id = id; } public String getName() { return name; } public void setName(String name) { this.name = name; } public String getPwd() { return pwd; } public void setPwd(String pwd) { this.pwd = pwd; } }
index.jsp:
<%@ page contentType="text/html;charset=UTF-8" language="java" %> <html> <body> <form action="/login" method="post" enctype="multipart/form-data"> <table> <tr> <td>username:</td> <td><input type="text" name="name"/></td> </tr> <tr> <td>password:</td> <td><input type="password" name="pwd"/></td> </tr> <tr> <td><input type="reset" value="重置"/></td> <td><input type="submit" value="提交"/></td> </tr> </table> </form> </body> </html>
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/maven-v4_0_0.xsd"> <modelVersion>4.0.0</modelVersion> <groupId>com.heitian.web</groupId> <artifactId>web-ssm</artifactId> <packaging>war</packaging> <version>1.0-SNAPSHOT</version> <name>web-ssm Maven Webapp</name> <url>http://maven.apache.org</url> <properties> <spring.version>4.1.6.RELEASE</spring.version> <mybatis.version>3.2.6</mybatis.version> <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> <!-- 表示開發的時候引入，釋出的時候不會載入此包 --> <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>1.2.3</version> </dependency> <!-- 匯入java ee jar 包 --> <dependency> <groupId>javax</groupId> <artifactId>javaee-api</artifactId> <version>7.0</version> </dependency> <!-- 匯入Mysql資料庫連結jar包 --> <dependency> <groupId>mysql</groupId> <artifactId>mysql-connector-java</artifactId> <version>5.1.30</version> </dependency> <!-- 匯入dbcp的jar包，用來在applicationContext.xml中配置資料庫 --> <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> <!-- 日誌檔案管理包 --> <!-- log start --> <dependency> <groupId>log4j</groupId> <artifactId>log4j</artifactId> <version>1.2.17</version> </dependency> <!-- 格式化物件，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> <!-- 上傳元件包 --> <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> <dependency> <groupId>org.mybatis</groupId> <artifactId>mybatis-spring</artifactId> <version>1.3.1</version> </dependency> <dependency> <groupId>junit</groupId> <artifactId>junit</artifactId> <version>4.10</version> </dependency> </dependencies> <build> <finalName>web-ssm</finalName> </build> </project>
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