spring restful version support

Dcmuyi · Jun 6, 2014 · 9b4c988 · 9b4c988
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diff --git a/spring/samples/pom.xml b/spring/samples/pom.xml
@@ -0,0 +1,144 @@
+<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>cnblogs.jcli</groupId>
+  <artifactId>spring</artifactId>
+  <packaging>war</packaging>
+  <version>0.0.1-SNAPSHOT</version>
+  <name>spring Maven Webapp</name>
+  <url>http://maven.apache.org</url>
+
+  <properties>
+		<org.springframework.version>4.0.4.RELEASE</org.springframework.version>
+		<!-- mybatis generator configuration -->
+
+	</properties>
+
+  <dependencies>
+		<dependency>
+			<groupId>com.googlecode.lambdaj</groupId>
+			<artifactId>lambdaj</artifactId>
+			<version>2.3.3</version>
+		</dependency>
+
+		<dependency>
+			<groupId>log4j</groupId>
+			<artifactId>log4j</artifactId>
+			<version>1.2.17</version>
+		</dependency>
+		<dependency>
+			<groupId>commons-lang</groupId>
+			<artifactId>commons-lang</artifactId>
+			<version>2.6</version>
+		</dependency>
+
+		<dependency>
+			<groupId>org.codehaus.jackson</groupId>
+			<artifactId>jackson-mapper-asl</artifactId>
+			<version>1.9.10</version>
+		</dependency>
+
+		<dependency>
+			<groupId>org.springframework</groupId>
+			<artifactId>spring-jdbc</artifactId>
+			<version>${org.springframework.version}</version>
+		</dependency>
+
+		<dependency>
+			<groupId>org.springframework</groupId>
+			<artifactId>spring-aspects</artifactId>
+			<version>${org.springframework.version}</version>
+		</dependency>
+
+		<dependency>
+			<groupId>org.springframework</groupId>
+			<artifactId>spring-webmvc</artifactId>
+			<version>${org.springframework.version}</version>
+		</dependency>
+
+		<dependency>
+			<groupId>org.springframework</groupId>
+			<artifactId>spring-test</artifactId>
+			<version>${org.springframework.version}</version>
+		</dependency>
+
+		<dependency>
+			<groupId>org.mybatis</groupId>
+			<artifactId>mybatis</artifactId>
+			<version>3.2.3</version>
+		</dependency>
+
+		<dependency>
+			<groupId>org.mybatis</groupId>
+			<artifactId>mybatis-spring</artifactId>
+			<version>1.2.1</version>
+		</dependency>
+
+		<dependency>
+			<groupId>mysql</groupId>
+			<artifactId>mysql-connector-java</artifactId>
+			<version>5.1.26</version>
+		</dependency>
+		<dependency>
+			<groupId>commons-dbcp</groupId>
+			<artifactId>commons-dbcp</artifactId>
+			<version>1.4</version>
+		</dependency>
+
+		<dependency>
+			<groupId>junit</groupId>
+			<artifactId>junit</artifactId>
+			<version>4.11</version>
+			<scope>test</scope>
+		</dependency>
+
+        <dependency>
+            <groupId>org.dbunit</groupId>
+            <artifactId>dbunit</artifactId>
+            <version>2.4.9</version>
+            <scope>test</scope>
+        </dependency>
+
+        <dependency>
+            <groupId>org.slf4j</groupId>
+            <artifactId>slf4j-api</artifactId>
+            <version>1.7.5</version>
+            <scope>test</scope>
+        </dependency>
+
+
+
+
+        <dependency>
+            <groupId>com.qiniu</groupId>
+            <artifactId>sdk</artifactId>
+            <version>6.0.7</version>
+        </dependency>
+
+        <dependency>
+            <groupId>org.apache.geronimo.specs</groupId>
+            <artifactId>geronimo-servlet_2.5_spec</artifactId>
+            <version>1.2</version>
+            <scope>provided</scope>
+        </dependency>
+
+        <dependency>
+            <groupId>opensymphony</groupId>
+            <artifactId>sitemesh</artifactId>
+            <version>2.4.2</version>
+        </dependency>
+
+        <dependency>
+            <groupId>jstl</groupId>
+            <artifactId>jstl</artifactId>
+            <version>1.2</version>
+        </dependency>
+
+
+
+
+    </dependencies>
+  <build>
+    <finalName>spring</finalName>
+  </build>
+</project>
diff --git a/spring/samples/src/java/spring/HelloController.java b/spring/samples/src/java/spring/HelloController.java
@@ -0,0 +1,42 @@
+package spring;
+
+import javax.servlet.http.HttpServletRequest;
+
+import org.springframework.stereotype.Controller;
+import org.springframework.web.bind.annotation.RequestMapping;
+import org.springframework.web.bind.annotation.ResponseBody;
+
+import spring.util.ApiVersion;
+
+@Controller
+@RequestMapping("/{version}/")
+public class HelloController {
+
+    @RequestMapping("hello/")
+    @ApiVersion(1)
+    @ResponseBody
+    public String hello(HttpServletRequest request){
+        System.out.println("haha1..........");
+
+        return "hello";
+    }
+
+    @RequestMapping("hello/")
+    @ApiVersion(2)
+    @ResponseBody
+    public String hello2(HttpServletRequest request){
+        System.out.println("haha2.........");
+
+        return "hello";
+    }
+
+    @RequestMapping("hello/")
+    @ApiVersion(5)
+    @ResponseBody
+    public String hello5(HttpServletRequest request){
+        System.out.println("haha5.........");
+
+        return "hello";
+    }
+
+}
diff --git a/spring/samples/src/java/spring/util/ApiVersion.java b/spring/samples/src/java/spring/util/ApiVersion.java
@@ -0,0 +1,22 @@
+package spring.util;
+
+import java.lang.annotation.Documented;
+import java.lang.annotation.ElementType;
+import java.lang.annotation.Retention;
+import java.lang.annotation.RetentionPolicy;
+import java.lang.annotation.Target;
+
+import org.springframework.web.bind.annotation.Mapping;
+
+/**
+ * 
+ * 接口版本标识注解
+ *
+ */
+@Target({ElementType.METHOD, ElementType.TYPE})
+@Retention(RetentionPolicy.RUNTIME)
+@Documented
+@Mapping
+public @interface ApiVersion {
+    int value();
+}
diff --git a/spring/samples/src/java/spring/util/ApiVesrsionCondition.java b/spring/samples/src/java/spring/util/ApiVesrsionCondition.java
@@ -0,0 +1,45 @@
+package spring.util;
+
+import java.util.regex.Matcher;
+import java.util.regex.Pattern;
+
+import javax.servlet.http.HttpServletRequest;
+
+import org.springframework.web.servlet.mvc.condition.RequestCondition;
+
+public class ApiVesrsionCondition implements RequestCondition<ApiVesrsionCondition> {
+
+    // 路径中版本的前缀， 这里用 /v[1-9]/的形式
+    private final static Pattern VERSION_PREFIX_PATTERN = Pattern.compile("v(\\d+)/");
+
+    private int apiVersion;
+
+    public ApiVesrsionCondition(int apiVersion){
+        this.apiVersion = apiVersion;
+    }
+
+    public ApiVesrsionCondition combine(ApiVesrsionCondition other) {
+        // 采用最后定义优先原则，则方法上的定义覆盖类上面的定义
+        return new ApiVesrsionCondition(other.getApiVersion());
+    }
+
+    public ApiVesrsionCondition getMatchingCondition(HttpServletRequest request) {
+        Matcher m = VERSION_PREFIX_PATTERN.matcher(request.getPathInfo());
+        if(m.find()){
+            Integer version = Integer.valueOf(m.group(1));
+            if(version >= this.apiVersion) // 如果请求的版本号大于配置版本号， 则满足
+                return this;
+        }
+        return null;
+    }
+
+    public int compareTo(ApiVesrsionCondition other, HttpServletRequest request) {
+        // 优先匹配最新的版本号
+        return other.getApiVersion() - this.apiVersion;
+    }
+
+    public int getApiVersion() {
+        return apiVersion;
+    }
+
+}
diff --git a/spring/samples/src/java/spring/util/AuthInteceptor.java b/spring/samples/src/java/spring/util/AuthInteceptor.java
@@ -0,0 +1,20 @@
+package spring.util;
+
+import javax.servlet.http.HttpServletRequest;
+import javax.servlet.http.HttpServletResponse;
+
+import org.springframework.web.servlet.handler.HandlerInterceptorAdapter;
+
+public class AuthInteceptor extends HandlerInterceptorAdapter
+{
+
+    @Override
+    public boolean preHandle(HttpServletRequest request,
+        HttpServletResponse response, Object handler) throws Exception
+    {
+        System.out.println("URI: " + request.getRequestURI());
+        return true;
+    }
+
+
+}
diff --git a/spring/samples/src/java/spring/util/CustomRequestMappingHandlerMapping.java b/spring/samples/src/java/spring/util/CustomRequestMappingHandlerMapping.java
@@ -0,0 +1,26 @@
+package spring.util;
+
+import java.lang.reflect.Method;
+
+import org.springframework.core.annotation.AnnotationUtils;
+import org.springframework.web.servlet.mvc.condition.RequestCondition;
+import org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerMapping;
+
+public class CustomRequestMappingHandlerMapping extends RequestMappingHandlerMapping {
+
+    @Override
+    protected RequestCondition<ApiVesrsionCondition> getCustomTypeCondition(Class<?> handlerType) {
+        ApiVersion apiVersion = AnnotationUtils.findAnnotation(handlerType, ApiVersion.class);
+        return createCondition(apiVersion);
+    }
+
+    @Override
+    protected RequestCondition<ApiVesrsionCondition> getCustomMethodCondition(Method method) {
+        ApiVersion apiVersion = AnnotationUtils.findAnnotation(method, ApiVersion.class);
+        return createCondition(apiVersion);
+    }
+
+    private RequestCondition<ApiVesrsionCondition> createCondition(ApiVersion apiVersion) {
+        return apiVersion == null ? null : new ApiVesrsionCondition(apiVersion.value());
+    }
+}
diff --git a/spring/samples/src/java/spring/util/WebConfig.java b/spring/samples/src/java/spring/util/WebConfig.java
@@ -0,0 +1,19 @@
+package spring.util;
+
+import org.springframework.context.annotation.Bean;
+import org.springframework.context.annotation.Configuration;
+import org.springframework.web.servlet.config.annotation.WebMvcConfigurationSupport;
+import org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerMapping;
+
+@Configuration
+public class WebConfig extends WebMvcConfigurationSupport{
+
+    @Override
+    @Bean
+    public RequestMappingHandlerMapping requestMappingHandlerMapping() {
+        RequestMappingHandlerMapping handlerMapping = new CustomRequestMappingHandlerMapping();
+        handlerMapping.setOrder(0);
+        handlerMapping.setInterceptors(getInterceptors());
+        return handlerMapping;
+    }
+}
diff --git a/spring/samples/src/main/resources/applicationContext.xml b/spring/samples/src/main/resources/applicationContext.xml
@@ -0,0 +1,16 @@
+<?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:aop="http://www.springframework.org/schema/aop" xmlns:tx="http://www.springframework.org/schema/tx"
+	xmlns:jdbc="http://www.springframework.org/schema/jdbc" xmlns:context="http://www.springframework.org/schema/context"
+	xsi:schemaLocation="
+     http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-3.0.xsd
+     http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.0.xsd
+     http://www.springframework.org/schema/jdbc http://www.springframework.org/schema/jdbc/spring-jdbc-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/aop http://www.springframework.org/schema/aop/spring-aop-3.0.xsd">
+
+
+
+</beans>
diff --git a/spring/samples/src/main/resources/log4j.properties b/spring/samples/src/main/resources/log4j.properties
@@ -0,0 +1,11 @@
+log4j.rootLogger=WARN, stdout
+
+log4j.appender.stdout=org.apache.log4j.ConsoleAppender
+log4j.appender.stdout.layout=org.apache.log4j.PatternLayout
+log4j.appender.stdout.layout.ConversionPattern=%d %p [%c] - <%m>%n
+
+
+log4j.logger.java.sql=DEBUG
+
+
+
diff --git a/spring/samples/src/main/webapp/WEB-INF/mvc-servlet.xml b/spring/samples/src/main/webapp/WEB-INF/mvc-servlet.xml
@@ -0,0 +1,33 @@
+<?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" xmlns:aop="http://www.springframework.org/schema/aop"
+	xmlns:util="http://www.springframework.org/schema/util"
+	xsi:schemaLocation="
+		http://www.springframework.org/schema/beans 
+		http://www.springframework.org/schema/beans/spring-beans-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-3.0.xsd
+		http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop.xsd
+		http://www.springframework.org/schema/util http://www.springframework.org/schema/util/spring-util.xsd">
+
+
+
+	<bean name="haha" class="java.lang.Object"></bean>
+
+	<bean name="myInt" class="spring.util.AuthInteceptor"></bean>
+	<bean class="org.springframework.web.servlet.handler.MappedInterceptor">
+		<constructor-arg>
+			<list>
+				<value>/*</value>
+			</list>
+		</constructor-arg>
+		<constructor-arg ref="myInt"></constructor-arg>
+	</bean>
+
+	<context:component-scan base-package="spring" />
+
+</beans>