2.搭建配置最简单的spring mvc 工程-基础版
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2022-04-08 19:11:44
目标:用最少的东西,搭建可以运行的最最基础的springMvc登陆校验项目! spring 4 1.首先配置pom.xml引入spring 相关jar, 引用都有注释, 无关的可以暂时不引用。 2.配置web.xml, 这里使用servlet3.1, 配置相关的applicationContext. ......
目标:用最少的东西,搭建可以运行的最最基础的springmvc登陆校验项目!
spring 4
1.首先配置pom.xml引入spring 相关jar, 引用都有注释, 无关的可以暂时不引用。
<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>com.gof</groupid> <artifactid>gof-web</artifactid> <packaging>war</packaging> <version>0.0.1-snapshot</version> <name>gof-web</name> <url>http://maven.apache.org</url> <properties> <project.build.sourceencoding>utf-8</project.build.sourceencoding> <springversion>4.3.0.release</springversion> <jacksonversion>2.9.3</jacksonversion> <mybatisversion>3.4.4</mybatisversion> <mybatisspringversion>1.3.0</mybatisspringversion> <c3p0version>0.9.5.2</c3p0version> <mysqlversion>5.1.38</mysqlversion> <slf4jversion>1.7.21</slf4jversion> <log4jversion>1.2.17</log4jversion> <jstlversion>1.2</jstlversion> <servletapiversion>3.1.0</servletapiversion> <junitversion>4.12</junitversion> </properties> <dependencies> <!--junit 测试开始--> <dependency> <groupid>junit</groupid> <artifactid>junit</artifactid> <version>${junitversion}</version> <scope>test</scope> </dependency> <!--junit 测试结束--> <!--slf4j + log4j日志依赖 开始--> <dependency> <groupid>org.slf4j</groupid> <artifactid>slf4j-api</artifactid> <version>${slf4jversion}</version> </dependency> <dependency> <groupid>org.slf4j</groupid> <artifactid>slf4j-log4j12</artifactid> <version>${slf4jversion}</version> </dependency> <dependency> <groupid>log4j</groupid> <artifactid>log4j</artifactid> <version>${log4jversion}</version> </dependency> <!--slf4j + log4j日志依赖 结束--> <!--javaee web容器提供 开始--> <dependency> <groupid>javax.servlet</groupid> <artifactid>javax.servlet-api</artifactid> <version>${servletapiversion}</version> <scope>provided</scope> </dependency> <!--javaee web容器提供 开始--> <!--jsp 常用标签库依赖 开始--> <dependency> <groupid>javax.servlet</groupid> <artifactid>jstl</artifactid> <version>${jstlversion}</version> <scope>runtime</scope> </dependency> <!--jsp 常用标签库依赖 结束--> <!-- springmvc模块依赖 开始--> <dependency> <groupid>org.springframework</groupid> <artifactid>spring-webmvc</artifactid> <version>${springversion}</version> </dependency> <dependency> <groupid>com.fasterxml.jackson.core</groupid> <artifactid>jackson-databind</artifactid> <version>${jacksonversion}</version> </dependency> <!-- springmvc模块依赖 结束--> <!-- mybatis模块依赖 开始--> <dependency> <groupid>org.mybatis</groupid> <artifactid>mybatis</artifactid> <version>${mybatisversion}</version> </dependency> <dependency> <groupid>org.mybatis</groupid> <artifactid>mybatis-spring</artifactid> <version>${mybatisspringversion}</version> </dependency> <!-- mybatis模块依赖 结束--> <!--c3p0 数据库连接池依赖 开始--> <dependency> <groupid>com.mchange</groupid> <artifactid>c3p0</artifactid> <version>${c3p0version}</version> </dependency> <!--c3p0 数据库连接池依赖 结束--> <!--jdbc 驱动依赖 开始 --> <dependency> <groupid>mysql</groupid> <artifactid>mysql-connector-java</artifactid> <version>${mysqlversion}</version> </dependency> <!--jdbc 驱动依赖 结束 --> <!--spring常用模块依赖 开始--> <dependency> <groupid>org.springframework</groupid> <artifactid>spring-aop</artifactid> <version>${springversion}</version> </dependency> <dependency> <groupid>org.springframework</groupid> <artifactid>spring-aspects</artifactid> <version>${springversion}</version> </dependency> <dependency> <groupid>org.springframework</groupid> <artifactid>spring-beans</artifactid> <version>${springversion}</version> </dependency> <dependency> <groupid>org.springframework</groupid> <artifactid>spring-context</artifactid> <version>${springversion}</version> </dependency> <dependency> <groupid>org.springframework</groupid> <artifactid>spring-context-support</artifactid> <version>${springversion}</version> </dependency> <dependency> <groupid>org.springframework</groupid> <artifactid>spring-core</artifactid> <version>${springversion}</version> </dependency> <dependency> <groupid>org.springframework</groupid> <artifactid>spring-jdbc</artifactid> <version>${springversion}</version> </dependency> <dependency> <groupid>org.springframework</groupid> <artifactid>spring-orm</artifactid> <version>${springversion}</version> </dependency> <dependency> <groupid>org.springframework</groupid> <artifactid>spring-tx</artifactid> <version>${springversion}</version> </dependency> <dependency> <groupid>org.springframework</groupid> <artifactid>spring-test</artifactid> <version>${springversion}</version> </dependency> <dependency> <groupid>org.springframework</groupid> <artifactid>spring-web</artifactid> <version>${springversion}</version> </dependency> <!--spring常用模块依赖结束--> </dependencies> </project>
2.配置web.xml, 这里使用servlet3.1, 配置相关的applicationcontext.xml, 这里是监听spring, 以及引用spring-mvc.xml
<?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"> <!-- *** 初始化spring容器开始 *** --> <listener> <listener-class>org.springframework.web.context.contextloaderlistener</listener-class> </listener> <context-param> <param-name>contextconfiglocation</param-name> <param-value>classpath:applicationcontext.xml</param-value> </context-param> <!-- === 初始化spring容器结束 === --> <!-- *** 初始化springmvc开始 *** --> <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> </servlet> <servlet-mapping> <servlet-name>springmvc</servlet-name> <url-pattern>/</url-pattern> </servlet-mapping> <!-- === 初始化springmvc结束 === --> </web-app>
3. 配置 applicationcontext.xml, 这里仅配置spring组件扫描,后期其他再继续配置
<?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:aop="http://www.springframework.org/schema/aop" xmlns:tx="http://www.springframework.org/schema/tx" xsi:schemalocation="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/aop http://www.springframework.org/schema/aop/spring-aop.xsd http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx.xsd"> <!-- 注解扫描:扫描@component,@service,@repository等注解,指定com.gof --> <context:component-scan base-package="com.gof" /> <!-- <context:annotation-config />仅能够在已经在已经注册过(applicationcontext)的bean上面起作用。--> </beans>
4.配置spring-mvc.xml, 配置了注解,以及指定扫描的包, 以及指定spring mvc返回的文件目录格式等
<?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" xmlns:mvc="http://www.springframework.org/schema/mvc" xsi:schemalocation="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"> <!-- spring mvc注解:@controller,@requestmapping等 --> <mvc:annotation-driven/> <!-- 对进入dispatcherservlet的url进行筛查,如果发现是静态资源的请求,就将该请求转由web应用服务器默认的servlet处理,如果不是静态资源的请求,才由dispatcherservlet继续处理。 --> <mvc:default-servlet-handler/> <!-- 指定spring mvc 返回的文件格式后缀,目录, 也可以不指定,就进行移除--> <bean class="org.springframework.web.servlet.view.internalresourceviewresolver"> <property name="viewclass" value="org.springframework.web.servlet.view.jstlview"/> <property name="prefix" value="/web-inf/"/> <property name="suffix" value=".html"/> <property name="contenttype" value="text/html"/> </bean> <!--只扫描@controller注解类,否则影响事务--> <context:component-scan base-package="com.gof" use-default-filters="false"> <context:include-filter type="annotation" expression="org.springframework.stereotype.controller"/> </context:component-scan> </beans>
5. 创建user.java
package com.gof.domain; import java.io.serializable; public class user implements serializable{ private static final long serialversionuid = 1l; private string userid; private string username; private string password; private string sex; private int age; public string getuserid() { return userid; } public void setuserid(string userid) { this.userid = userid; } public string getusername() { return username; } public void setusername(string username) { this.username = username; } public string getpassword() { return password; } public void setpassword(string password) { this.password = password; } public string getsex() { return sex; } public void setsex(string sex) { this.sex = sex; } public int getage() { return age; } public void setage(int age) { this.age = age; } }
6.创建接口:iuserservice
package com.gof.service; import com.gof.domain.user; public interface iuserservice { public user getuserbyusername(string username); }
7.创建实现类:userservice, 这里没有使用到数据,所以数据暂时写固定
package com.gof.service; import java.util.hashmap; import java.util.map; import org.springframework.stereotype.component; import com.gof.domain.user; @component public class userservice implements iuserservice{ /** * 取user */ @override public user getuserbyusername(string username) { map<string, user> usermap = new hashmap<string, user>(); //假设username唯一 user usera = new user(); usera.setuserid("xxafsfdxafdsafds"); usera.setusername("jihy"); usera.setpassword("123456"); user userb= new user(); usera.setuserid("xxafsfdxafdsafds"); userb.setusername("jihy2"); userb.setpassword("123456"); usermap.put(usera.getusername(), usera); usermap.put(userb.getusername(), userb); return usermap.get(username); } }
8.控制层:usercontroller.java
package com.gof.controller; import org.springframework.beans.factory.annotation.autowired; import org.springframework.stereotype.controller; import org.springframework.web.bind.annotation.requestmapping; import org.springframework.web.bind.annotation.requestparam; import org.springframework.web.bind.annotation.responsebody; import com.gof.domain.jsonresponse; import com.gof.domain.user; import com.gof.service.iuserservice; @controller public class logincontroller { @autowired private iuserservice userservice; /** * 登陆主页 * @return */ @requestmapping(value="/loginindex") public string loginindex(){ return "loginindex"; } /** * 验证登陆请求 * @param username * @param password * @return */ @requestmapping(value="/login") @responsebody public jsonresponse login(@requestparam string username, @requestparam string password){ jsonresponse response = new jsonresponse(); response.setstatus("error"); user user = userservice.getuserbyusername(username); if (user == null) { return response; } if (!password.equals(user.getpassword())) { return response; } response.setstatus("success"); return response; } }
9.返回对象:jsonresponse.java
package com.gof.domain; import java.io.serializable; public class jsonresponse implements serializable{ private static final long serialversionuid = 1l; private string status; private object result; public string getstatus() { return status; } public void setstatus(string status) { this.status = status; } public object getresult() { return result; } public void setresult(object result) { this.result = result; } }
10.l登陆主页:loginindex.html
<html> <head> <script type="text/javascript" src="./static/js/lib/jquery/jquery-1.8.2.js"></script> </head> <body> <h2>hello world!</h2> <form name="loginform"> <input type="input" name="username" id="username" value="jihy"/> <input type="password" name="password" id="password" value="123456"/> <input type="button" name="提交"/> </form> </body> <script type="text/javascript"> alert($("form").serialize()); $(function(){ $.ajax({ type:"post", url: "./login", data: $("form").serialize(), success: function(data){ alert(json.stringify(data)); }}); }) </script> </html>
11.引用了jquery插件:
12:完成, 使用上面代码, 可以运行的项目!