一个简单Resful结构Web 博客分类： SpringMVC
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2024-02-05 16:20:22
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1 工程创建
1.1 单根DispatcherServlet配置
<web-app>
<display-name>Archetype Created Web Application</display-name>
<context-param>
<param-name>contextConfigLocation</param-name>
<param-value>classpath:WEB-INF/root-context.xml</param-value>
</context-param>
<servlet>
<servlet-name>mvc</servlet-name>
<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
<init-param>
<param-name>contextConfigLocation</param-name>
<param-value>classpath:WEB-INF/mvc-servlet.xml</param-value>
</init-param>
<load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>mvc</servlet-name>
<url-pattern>/*</url-pattern>
</servlet-mapping>
<listener>
<listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
</listener>
</web-app>
1.2 root-context配置
<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:context="http://www.springframework.org/schema/context"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:tx="http://www.springframework.org/schema/tx"
xmlns:mvc="http://www.springframework.org/schema/mvc"
xsi:schemaLocation="http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans-3.0.xsd
http://www.springframework.org/schema/tx
http://www.springframework.org/schema/tx/spring-tx-3.0.xsd
http://www.springframework.org/schema/context
http://www.springframework.org/schema/context/spring-context-3.0.xsd
http://www.springframework.org/schema/mvc
http://www.springframework.org/schema/mvc/spring-mvc-3.2.xsd">
<!-- 扫描包不扫描controller包 -->
<context:component-scan base-package="mvc">
<context:exclude-filter type="regex" expression="mvc.controller.*"/>
</context:component-scan>
</beans>
1.3 mvc-servlet配置
<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:context="http://www.springframework.org/schema/context"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:tx="http://www.springframework.org/schema/tx"
xmlns:mvc="http://www.springframework.org/schema/mvc"
xsi:schemaLocation="http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans-3.0.xsd
http://www.springframework.org/schema/tx
http://www.springframework.org/schema/tx/spring-tx-3.0.xsd
http://www.springframework.org/schema/context
http://www.springframework.org/schema/context/spring-context-3.0.xsd
http://www.springframework.org/schema/mvc
http://www.springframework.org/schema/mvc/spring-mvc-3.2.xsd">
<!-- 扫描controller包 -->
<context:component-scan base-package="mvc.controller"/>
<!-- 启用支持Restful结构的配置，pom需要导入jackson包 -->
<mvc:annotation-driven/>
</beans>
1.4 pom配置
<dependencies>
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>4.2</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-webmvc</artifactId>
<version>4.3.8.RELEASE</version>
</dependency>
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>javax.servlet-api</artifactId>
<version>3.1.0</version>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>com.fasterxml.jackson.core</groupId>
<artifactId>jackson-core</artifactId>
<version>2.8.8</version>
</dependency>
<dependency>
<groupId>com.fasterxml.jackson.core</groupId>
<artifactId>jackson-databind</artifactId>
<version>2.8.8</version>
</dependency>
<dependency>
<groupId>com.fasterxml.jackson.core</groupId>
<artifactId>jackson-annotations</artifactId>
<version>2.8.8</version>
</dependency>
</dependencies>
1.5 UserController
package mvc.controller;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.PathVariable;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;
import mvc.bean.User;
@RestController
@RequestMapping("user")
public class UserController
{
private static User user = new User();
@GetMapping("{id}")
public User getUser(@PathVariable Long id)
{
if(user != null && id.equals(user.getId()))
{
return user;
}
return new User();
}
@PostMapping("add")
public String addUser(@RequestBody User user)
{
this.user.setId(user.getId());
this.user.setName(user.getName());
return "ok";
}
}
1.6 User对象
package mvc.bean;
public class User
{
private Long id;
private String name;
public Long getId()
{
return id;
}
public void setId(Long id)
{
this.id = id;
}
public String getName()
{
return name;
}
public void setName(String name)
{
this.name = name;
}
@Override
public String toString()
{
return this.id + this.name;
}
}
1.5 项目完整结构
2 启动和测试项目
2.1 启动成功信息
信息: Initializing Spring FrameworkServlet 'mvc'
六月 19, 2017 7:13:49 下午 org.springframework.web.servlet.DispatcherServlet initServletBean
信息: FrameworkServlet 'mvc': initialization started
六月 19, 2017 7:13:49 下午 org.springframework.web.context.support.XmlWebApplicationContext prepareRefresh
信息: Refreshing WebApplicationContext for namespace 'mvc-servlet': startup date [Mon Jun 19 19:13:49 CST 2017]; parent: Root WebApplicationContext
六月 19, 2017 7:13:49 下午 org.springframework.beans.factory.xml.XmlBeanDefinitionReader loadBeanDefinitions
信息: Loading XML bean definitions from class path resource [WEB-INF/mvc-servlet.xml]
六月 19, 2017 7:13:50 下午 org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerMapping register
信息: Mapped "{[/user/{id}],methods=[GET]}" onto public mvc.bean.User mvc.controller.UserController.getUser(java.lang.Long)
六月 19, 2017 7:13:50 下午 org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerMapping register
信息: Mapped "{[/user/add],methods=[POST]}" onto public java.lang.String mvc.controller.UserController.addUser(mvc.bean.User)
六月 19, 2017 7:13:50 下午 org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter initControllerAdviceCache
信息: Looking for @ControllerAdvice: WebApplicationContext for namespace 'mvc-servlet': startup date [Mon Jun 19 19:13:49 CST 2017]; parent: Root WebApplicationContext
六月 19, 2017 7:13:50 下午 org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter initControllerAdviceCache
信息: Looking for @ControllerAdvice: WebApplicationContext for namespace 'mvc-servlet': startup date [Mon Jun 19 19:13:49 CST 2017]; parent: Root WebApplicationContext
六月 19, 2017 7:13:50 下午 org.springframework.web.servlet.DispatcherServlet initServletBean
信息: FrameworkServlet 'mvc': initialization completed in 707 ms
六月 19, 2017 7:13:50 下午 org.apache.coyote.AbstractProtocol start
信息: Starting ProtocolHandler ["http-nio-8080"]
六月 19, 2017 7:13:50 下午 org.apache.coyote.AbstractProtocol start
信息: Starting ProtocolHandler ["ajp-nio-8032"]
六月 19, 2017 7:13:50 下午 org.apache.catalina.startup.Catalina start
信息: Server startup in 2239 ms
可以看到一个post和一个get接口已经注册成功了。
2.2 注册一个用户
2.3 获取注册的用户
请求id不是123时返回的数据
是123时返回的数据
