SSH(进阶) SpringDataJPA + SpringMVC 快速搭建企业框架

1、什么是JPA？

    JPA是Java Persistence API的简称，中文名Java持久层API，是JDK 5.0注解或XML描述对象－关系表的映射关系，并将运行期的实体对象持久化到数据库中。    事实上，JPA并不是一项技术，而是一种标准，因为JPA只是一套接口，本身不能完成任何事情。JPA只是规范了Java持久化的官方标准。JPA有以下几个优点。1、 可持久化Java对象。(JPA能够直接持久化复杂的Java对象，并能够使用JPQL语言进行复杂的查询)2、 使用简单。(JPA使用注释（Annotation）定义Java对象与关系数据库之间的映射)

2、什么是SpringData?

    Spring Data是一个用于简化数据库访问，并支持云服务的开源框架。其主要目标是使得对数据的访问变得方便快捷，并支持map-reduce框架和云计算数据服务。     主要来看看Spring Data JPA提供的接口，也是Spring Data JPA的核心概念：

1、Repository：最顶层的接口，是一个空的接口，目的是为了统一所有Repository的类型，且能让组件扫描的时候自动识别。
2、CrudRepository ：是Repository的子接口，提供CRUD的功能
3、PagingAndSortingRepository：是CrudRepository的子接口，添加分页和排序的功能

4、JpaRepository：是PagingAndSortingRepository的子接口，增加了一些实用的功能，比如：批量操作等。
5、JpaSpecificationExecutor：用来做负责查询的接口
6、Specification：是Spring Data JPA提供的一个查询规范，要做复杂的查询，只需围绕这个规范来设置查询条件即可

**在本篇文章我们主要是运用 JpaRespository 这个接口.**

3、搭建SpringDataJPA和SpringMVC框架

1、首先我们来看看项目结构:

a、新建Maven工程:打开eclipse ->file->new->project->Maven->Maven Project

选择 maven-archetype-webapp 下一步;

填Group Id 和 Artifact id,Group Id 是域名,Artifact id填项目名称就行了

b、项目建好之后就是导Maven包，这里我们引入Pom.xml 文件:

<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.ajie.wechat</groupId>    <artifactId>ajie-wechat</artifactId>    <packaging>jar</packaging>    <version>0.0.1-SNAPSHOT</version>    <name>ajie-wechat</name>    <url>http://maven.apache.org</url>    <dependencies>        <dependency>            <groupId>junit</groupId>            <artifactId>junit</artifactId>            <version>3.8.1</version>            <scope>test</scope>        </dependency>        <dependency>            <groupId>javax.servlet</groupId>            <artifactId>javax.servlet-api</artifactId>            <version>3.1.0</version>        </dependency>        <dependency>            <groupId>org.springframework</groupId>            <artifactId>spring-webmvc</artifactId>            <version>4.1.3.RELEASE</version>        </dependency>        <dependency>            <groupId>org.springframework</groupId>            <artifactId>spring-context</artifactId>            <version>4.1.3.RELEASE</version>        </dependency>        <dependency>            <groupId>org.springframework</groupId>            <artifactId>spring-beans</artifactId>            <version>4.1.3.RELEASE</version>        </dependency>        <dependency>            <groupId>org.springframework</groupId>            <artifactId>spring-web</artifactId>            <version>4.1.3.RELEASE</version>        </dependency>        <dependency>            <groupId>org.springframework</groupId>            <artifactId>spring-jdbc</artifactId>            <version>4.1.3.RELEASE</version>        </dependency>        <dependency>            <groupId>org.springframework</groupId>            <artifactId>spring-aop</artifactId>            <version>4.1.3.RELEASE</version>        </dependency>        <dependency>            <groupId>org.springframework</groupId>            <artifactId>spring-tx</artifactId>            <version>4.1.3.RELEASE</version>        </dependency>        <dependency>            <groupId>org.springframework</groupId>            <artifactId>spring-core</artifactId>            <version>4.1.3.RELEASE</version>        </dependency>        <dependency>            <groupId>org.springframework</groupId>            <artifactId>spring-orm</artifactId>            <version>4.1.3.RELEASE</version>        </dependency>        <dependency>            <groupId>org.hibernate</groupId>            <artifactId>hibernate-core</artifactId>            <version>4.3.11.Final</version>        </dependency>        <dependency>            <groupId>org.hibernate</groupId>            <artifactId>hibernate-entitymanager</artifactId>            <version>4.3.11.Final</version>        </dependency>        <dependency>            <groupId>org.hibernate</groupId>            <artifactId>hibernate-ehcache</artifactId>            <version>4.3.11.Final</version>        </dependency>        <dependency>            <groupId>mysql</groupId>            <artifactId>mysql-connector-java</artifactId>            <version>5.1.35</version>        </dependency>        <dependency>            <groupId>commons-dbcp</groupId>            <artifactId>commons-dbcp</artifactId>            <version>1.2.2</version>        </dependency>        <dependency>            <groupId>javax.servlet</groupId>            <artifactId>jstl</artifactId>            <version>1.2</version>        </dependency>        <dependency>            <groupId>org.slf4j</groupId>            <artifactId>slf4j-api</artifactId>            <version>1.7.12</version>        </dependency>        <dependency>            <groupId>com.jolbox</groupId>            <artifactId>bonecp</artifactId>            <version>0.8.0.RELEASE</version>        </dependency>        <dependency>            <groupId>com.jolbox</groupId>            <artifactId>bonecp-spring</artifactId>            <version>0.8.0.RELEASE</version>        </dependency>        <dependency>            <groupId>com.jolbox</groupId>            <artifactId>bonecp-provider</artifactId>            <version>0.8.0-alpha1</version>        </dependency>        <dependency>            <groupId>taglibs</groupId>            <artifactId>standard</artifactId>            <version>1.1.2</version>        </dependency>        <dependency>            <groupId>org.aspectj</groupId>            <artifactId>aspectjweaver</artifactId>            <version>1.8.7</version>        </dependency>        <dependency>            <groupId>cglib</groupId>            <artifactId>cglib-nodep</artifactId>            <version>3.2.0</version>        </dependency>        <dependency>            <groupId>commons-collections</groupId>            <artifactId>commons-collections</artifactId>            <version>3.2.1</version>        </dependency>        <dependency>            <groupId>ant</groupId>            <artifactId>ant</artifactId>            <version>1.6.5</version>        </dependency>        <dependency>            <groupId>org.apache.avro</groupId>            <artifactId>avro</artifactId>            <version>1.7.7</version>        </dependency>        <dependency>            <groupId>commons-beanutils</groupId>            <artifactId>commons-beanutils</artifactId>            <version>1.9.2</version>        </dependency>        <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>org.apache.commons</groupId>            <artifactId>commons-lang3</artifactId>            <version>3.4</version>        </dependency>        <dependency>            <groupId>dom4j</groupId>            <artifactId>dom4j</artifactId>            <version>1.6.1</version>        </dependency>        <dependency>            <groupId>net.sf.ezmorph</groupId>            <artifactId>ezmorph</artifactId>            <version>1.0.6</version>        </dependency>        <dependency>            <groupId>org.freemarker</groupId>            <artifactId>freemarker</artifactId>            <version>2.3.23</version>        </dependency>        <dependency>            <groupId>com.google.guava</groupId>            <artifactId>guava</artifactId>            <version>18.0</version>        </dependency>        <dependency>            <groupId>org.javassist</groupId>            <artifactId>javassist</artifactId>            <version>3.20.0-GA</version>        </dependency>        <dependency>            <groupId>org.jboss.logging</groupId>            <artifactId>jboss-logging</artifactId>            <version>3.3.0.Final</version>        </dependency>        <!-- jackson -->        <dependency>            <groupId>com.fasterxml.jackson.core</groupId>            <artifactId>jackson-databind</artifactId>            <version>2.5.0</version>        </dependency>        <dependency>            <groupId>com.fasterxml.jackson.core</groupId>            <artifactId>jackson-core</artifactId>            <version>2.5.0</version>        </dependency>        <dependency>            <groupId>com.fasterxml.jackson.core</groupId>            <artifactId>jackson-annotations</artifactId>            <version>2.5.0</version>        </dependency>        <!-- https://mvnrepository.com/artifact/org.springframework.data/spring-data-jpa -->        <dependency>            <groupId>org.springframework.data</groupId>            <artifactId>spring-data-jpa</artifactId>            <version>1.7.1.RELEASE</version>        </dependency>    </dependencies>    <build>        <plugins>            <!-- 编码和编译 -->            <plugin>                <groupId>org.apache.maven.plugins</groupId>                <artifactId>maven-compiler-plugin</artifactId>                <version>2.3.2</version>                <configuration>                    <source>1.7</source>                    <target>1.7</target>                    <encoding>utf8</encoding>                </configuration>            </plugin>        </plugins>        <finalName>ajie-wechat</finalName>    </build></project>

右键项目run As -> MavenInstall，从Maven 仓库下载项目所需的依赖包 .

C、配置spring-mvc.xml 和 applicationContext.xml 和 Jdcb.properties 配置文件：

1、 applicationContext.xml的配置文件:

<?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:aop="http://www.springframework.org/schema/aop"    xmlns:tx="http://www.springframework.org/schema/tx"    xmlns:context="http://www.springframework.org/schema/context"    xmlns:p="http://www.springframework.org/schema/p"    xmlns:cache="http://www.springframework.org/schema/cache"    xmlns:jaxws="http://cxf.apache.org/jaxws"    xmlns:jpa="http://www.springframework.org/schema/data/jpa"    xsi:schemaLocation="                    http://www.springframework.org/schema/beans                    http://www.springframework.org/schema/beans/spring-beans-3.1.xsd                    http://www.springframework.org/schema/tx                     http://www.springframework.org/schema/tx/spring-tx-3.1.xsd                    http://www.springframework.org/schema/aop                     http://www.springframework.org/schema/aop/spring-aop-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/cache                     http://www.springframework.org/schema/cache/spring-cache-3.1.xsd                    http://cxf.apache.org/jaxws http://cxf.apache.org/schemas/jaxws.xsd                     http://www.springframework.org/schema/data/jpa http://www.springframework.org/schema/data/jpa/spring-jpa.xsd"                     default-lazy-init="true">    <!-- 启动组件扫描，排除@Controller组件，该组件由SpringMVC配置文件扫描 -->    <context:component-scan base-package="com.xiaoyu.jpa">        <context:exclude-filter type="annotation" expression="org.springframework.stereotype.Controller" />    </context:component-scan>    <!-- 属性文件位置 -->    <context:property-placeholder location="/config/jdcb.properties" />    <!-- 数据源 -->    <bean id="dataSource" class="com.jolbox.bonecp.BoneCPDataSource"        destroy-method="close">        <!-- 数据库驱动 -->        <property name="driverClass" value="${jdbc.driverClassName}" />        <!-- 相应驱动的jdbcUrl-->        <property name="jdbcUrl" value="${jdbc.url}" />        <!-- 数据库的用户名 -->        <property name="username" value="${jdbc.username}" />        <!-- 数据库的密码 -->        <property name="password" value="${jdbc.password}" />    </bean>    <!-- JPA实体管理器工厂 -->    <bean id="entityManagerFactory"        class="org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean">        <property name="dataSource" ref="dataSource" />        <property name="jpaVendorAdapter" ref="hibernateJpaVendorAdapter" />        <!-- 加入定制化包路径 -->        <property name="packagesToScan" value="com.xiaoyu.jpa.model" />        <property name="jpaProperties">            <props>                <prop key="hibernate.current_session_context_class">thread</prop>                <prop key="hibernate.hbm2ddl.auto">update</prop><!-- validate/update/create -->                <prop key="hibernate.show_sql">false</prop>                <prop key="hibernate.format_sql">false</prop>                <!-- 建表的命名规则 -->                <prop key="hibernate.ejb.naming_strategy">org.hibernate.cfg.ImprovedNamingStrategy</prop>            </props>        </property>    </bean>    <!-- 设置JPA实现厂商的特定属性 -->    <bean id="hibernateJpaVendorAdapter"        class="org.springframework.orm.jpa.vendor.HibernateJpaVendorAdapter">        <property name="databasePlatform" value="${hibernate.dialect}"/>    </bean>    <!-- Jpa 事务配置 -->    <bean id="transactionManager" class="org.springframework.orm.jpa.JpaTransactionManager">        <property name="entityManagerFactory" ref="entityManagerFactory"/>    </bean>    <!-- Spring Data Jpa配置 -->    <jpa:repositories base-package="com.xiaoyu.jpa"  transaction-manager-ref="transactionManager" entity-manager-factory-ref="entityManagerFactory"/>    <!-- 使用annotation定义事务 -->    <tx:annotation-driven transaction-manager="transactionManager" proxy-target-class="true" /></beans>

2、spring-mvc.xml 配置文件:

<?xml version="1.0" encoding="UTF-8"?><beans xmlns="http://www.springframework.org/schema/beans"    xmlns:mvc="http://www.springframework.org/schema/mvc"    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"    xmlns:context="http://www.springframework.org/schema/context"    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-3.1.xsd" >    <!-- 启用SpringMVC的注解功能,它会自动注册HandlerMapping、HandlerAdapter、ExceptionResolver的相关实例 -->    <mvc:annotation-driven />    <!-- SpringMVC的扫描范围 -->    <context:component-scan base-package="com.xiaoyu.jpa.controller" use-default-filters="false">        <context:include-filter type="annotation" expression="org.springframework.stereotype.Controller"/>        <context:include-filter type="annotation" expression="org.springframework.web.bind.annotation.ControllerAdvice"/>    </context:component-scan>    <!-- 默认访问跳转到登录页面，即定义无Controller的path<->view直接映射     <mvc:view-controller path="/" view-name="redirect:/login"/>    -->    <!-- 静态文件访问 -->    <!-- <mvc:resources mapping="/resources/**" location="/resources/" /> -->    <!-- 用于返回json格式 -->    <bean id="mappingJacksonHttpMessageConverter" class="org.springframework.http.converter.json.MappingJackson2HttpMessageConverter">            <property name="supportedMediaTypes">                <list>                <value>application/x-www-form-urlencoded;charset=UTF-8</value>            </list>        </property>    </bean>     <!-- 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" />            </list>        </property>    </bean>    <!-- 配置SpringMVC的视图解析器 -->     <!-- 其viewClass属性的默认值就是org.springframework.web.servlet.view.JstlView -->      <bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">        <!-- <property name="viewClass" value="org.springframework.web.servlet.view.JstlView" /> -->        <property name="prefix" value="/" />        <property name="suffix" value=".html" />    </bean>    <!-- 总错误处理--><!--     <bean id="exceptionResolver" class="org.springframework.web.servlet.handler.SimpleMappingExceptionResolver">          <property name="defaultErrorView">            <value>/base/error</value>        </property>        <property name="defaultStatusCode">            <value>500</value>        </property>        <property name="warnLogCategory">            <value>org.springframework.web.servlet.handler.SimpleMappingExceptionResolver</value>          </property>    </bean> -->    <!-- 静态资源加载 -->    <mvc:resources location="/css/" mapping="/css/**" />    <mvc:resources location="/images/" mapping="/images/**" />    <mvc:resources location="/ATTACHMENT/" mapping="/ATTACHMENT/**" /></beans>

3、项目的 web.xml 文件:

<?xml version="1.0" encoding="UTF-8"?><web-app version="2.5" xmlns="http://java.sun.com/xml/ns/javaee"    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"    xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd">  <display-name>Archetype Created Web Application</display-name>  <context-param>        <param-name>contextConfigLocation</param-name>        <param-value>/WEB-INF/spring/applicationContext.xml</param-value>    </context-param>     <!-- 防止发生java.beans.Introspector内存泄露,应将它配置在ContextLoaderListener的前面 -->      <!-- 详细描述见http://blog.csdn.net/jadyer/article/details/11991457 -->      <listener>          <listener-class>org.springframework.web.util.IntrospectorCleanupListener</listener-class>      </listener>       <!-- 实例化Spring容器 -->      <!-- 应用启动时,该监听器被执行,它会读取Spring相关配置文件,其默认会到WEB-INF中查找applicationContext.xml -->      <listener>        <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>    </listener>    <!-- 配置编码过滤器 -->    <filter>        <filter-name>characterEncodingFilter</filter-name>        <filter-class>            org.springframework.web.filter.CharacterEncodingFilter        </filter-class>        <init-param>            <param-name>encoding</param-name>            <param-value>UTF-8</param-value>        </init-param>        <init-param>            <param-name>forceEncoding</param-name>            <param-value>true</param-value>        </init-param>    </filter>    <filter-mapping>        <filter-name>characterEncodingFilter</filter-name>        <url-pattern>/*</url-pattern>    </filter-mapping>    <!-- 配置spring管理OpenEntityManagerInViewFilter-->    <!-- OpenEntityManagerInViewFilter会让session一直到view层调用结束后才关闭        Spring针对Hibernate的非JPA实现用的是OpenSessionInViewFilter，原理与这个大同小异     -->    <filter>        <filter-name>hibernateFilter</filter-name>        <filter-class>            org.springframework.orm.jpa.support.OpenEntityManagerInViewFilter        </filter-class>    </filter>    <filter-mapping>        <filter-name>hibernateFilter</filter-name>        <url-pattern>/*</url-pattern>    </filter-mapping>    <!-- 用默认的servlet来处理资源 -->    <servlet-mapping>          <servlet-name>default</servlet-name>         <url-pattern>*.jpg</url-pattern>        </servlet-mapping>     <servlet-mapping>          <servlet-name>default</servlet-name>         <url-pattern>*.png</url-pattern>        </servlet-mapping>         <servlet-mapping>          <servlet-name>default</servlet-name>         <url-pattern>*.gif</url-pattern>        </servlet-mapping>     <servlet-mapping>          <servlet-name>default</servlet-name>         <url-pattern>*.woff</url-pattern>        </servlet-mapping>     <servlet-mapping>          <servlet-name>default</servlet-name>         <url-pattern>*.ttf</url-pattern>        </servlet-mapping>              <servlet-mapping>          <servlet-name>default</servlet-name>         <url-pattern>*.map</url-pattern>        </servlet-mapping>          <servlet-mapping>              <servlet-name>default</servlet-name>           <url-pattern>*.js</url-pattern>       </servlet-mapping>      <servlet-mapping>               <servlet-name>default</servlet-name>              <url-pattern>*.css</url-pattern>         </servlet-mapping>      <servlet-mapping>               <servlet-name>default</servlet-name>              <url-pattern>*.html</url-pattern>         </servlet-mapping>    <!-- SpringMVC核心分发器 -->    <servlet>        <servlet-name>dispatcherServlet</servlet-name>        <servlet-class>            org.springframework.web.servlet.DispatcherServlet        </servlet-class>        <init-param>            <param-name>contextConfigLocation</param-name>            <param-value>/WEB-INF/spring/spring-mvc.xml</param-value>        </init-param>        <load-on-startup>1</load-on-startup>    </servlet>    <servlet-mapping>        <servlet-name>dispatcherServlet</servlet-name>        <url-pattern>/</url-pattern>    </servlet-mapping>    <welcome-file-list>        <welcome-file>/index.html</welcome-file>    </welcome-file-list></web-app>

4、jdcb.properties 配置文件:

jdbc.driverClassName=com.mysql.jdbc.Driverjdbc.url=jdbc\:mysql\://localhost\:3306/people?useUnicode\=true&characterEncoding\=UTF-8jdbc.username=rootjdbc.password=123456hibernate.dialect=org.hibernate.dialect.MySQL5InnoDBDialectBoneCP.idleConnectionTestPeriod=60BoneCP.idleMaxAge=60BoneCP.maxConnectionsPerPartition=5BoneCP.minConnectionsPerPartition=1BoneCP.partitionCount=3BoneCP.acquireIncrement=2  BoneCP.statementsCacheSize=0 BoneCP.releaseHelperThreads=3

D、新建 Person.class 实体类、PersonDao接口、PersonService类、PersonController类:

1、新建Person实体类:

@Entity@Table(name = "person")public class Person implements Serializable {    private static final long serialVersionUID = 7419229779731522702L;    private int id;    private String name;    private int age;    private int sex;    public Person(){};    @Id    @Column(name="id",nullable=false,length=32,unique=true)    @GenericGenerator(name="generator",strategy="uuid.hex")    @GeneratedValue    public int getId() {        return id;    }    public void setId(int id) {        this.id = id;    }    @Column(name="name",nullable=false,length=32)    public String getName() {        return name;    }    public void setName(String name) {        this.name = name;    }    @Column(name="age",nullable=false,length=32)    public int getAge() {        return age;    }    public void setAge(int age) {        this.age = age;    }    @Column(name="sex",nullable=false,length=32)    public int getSex() {        return sex;    }    public void setSex(int sex) {        this.sex = sex;    }    public Person(int id, String name, int age, int sex) {        super();        this.id = id;        this.name = name;        this.age = age;        this.sex = sex;    }    @Override    public String toString() {        return "Person [id=" + id + ", name=" + name + ", age=" + age + ", sex=" + sex + "]";    }

2、新建PersonDao接口:

public interface PersonDao extends JpaRepository<Person,Integer> {    @Query(value="From Person" )    List<Person> findAllPersons();    @Query(value="From Person where name = ?")    Person findPersonByName(String name);    //@Query(value="select * from person",nativeQuery = true)    //List<Person> findAllPersons();}

PersonDao接口主要实现 springdataJpa 的 JpaRepository

@Service@Transactionalpublic class PersonService {    @Autowired    private PersonDao persondao;    public String add(Person person){        persondao.save(person);        return "添加成功";    }    public String updatePerson(Person p){        persondao.save(p);        return "添加成功";    }    public Person findPersonById(int id ){        return persondao.findOne(id);    }    public List<Person> findAllPersons(){        return persondao.findAllPersons();    }    public Person findPersonByName(String name){        return persondao.findPersonByName(name);    }

4、PersonController类:

@Controller@RequestMapping(value="/controller")public class PersonController {    @Autowired    private PersonService personServcie;     @ResponseBody    @RequestMapping(value="/savePerson")    public String savePerson(){        Person p = new Person();        p.setId(3);        p.setName("王五");        p.setSex(20);        String result = personServcie.add(p);        return result;    }    @ResponseBody    @RequestMapping(value="/findPerson")    public Person findPerson(int id){        System.out.println("已经进来了这里");        Person p = personServcie.findPersonById(id);        return p;    }    @ResponseBody    @RequestMapping(value="/updatePerson")    public Person updatePerson(int id){        System.out.println("已经进来了这里");        Person p = new Person();        p = personServcie.findPersonById(id);        p.setAge(20);        p.setSex(0);        personServcie.add(p);        return p;    }    @ResponseBody    @RequestMapping(value="/findAllPersons")    public List<Person> findAllPersons(){        return personServcie.findAllPersons();    }    @ResponseBody    @RequestMapping(value="/findByName")    public Person findByName(String name){        return personServcie.findPersonByName("张三");    }

启动项目然后访问 :
http://localhost:8080/quick4j/controller/findPerson?id=1