{"id":916,"date":"2023-05-11T04:52:12","date_gmt":"2023-01-04T20:36:23","guid":{"rendered":"https:\/\/www.silicloud.com\/ja\/blog\/json%e3%80%81jackson%e3%80%81%e3%81%8a%e3%82%88%e3%81%b3%e3%82%af%e3%83%a9%e3%82%a4%e3%82%a2%e3%83%b3%e3%83%88%e3%83%97%e3%83%ad%e3%82%b0%e3%83%a9%e3%83%a0%e3%82%92%e4%bd%bf%e7%94%a8%e3%81%97%e3%81%9f\/"},"modified":"2025-08-01T03:31:11","modified_gmt":"2025-07-31T18:31:11","slug":"json%e3%80%81jackson%e3%80%81%e3%81%8a%e3%82%88%e3%81%b3%e3%82%af%e3%83%a9%e3%82%a4%e3%82%a2%e3%83%b3%e3%83%88%e3%83%97%e3%83%ad%e3%82%b0%e3%83%a9%e3%83%a0%e3%82%92%e4%bd%bf%e7%94%a8%e3%81%97%e3%81%9f","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/ja\/blog\/json%e3%80%81jackson%e3%80%81%e3%81%8a%e3%82%88%e3%81%b3%e3%82%af%e3%83%a9%e3%82%a4%e3%82%a2%e3%83%b3%e3%83%88%e3%83%97%e3%83%ad%e3%82%b0%e3%83%a9%e3%83%a0%e3%82%92%e4%bd%bf%e7%94%a8%e3%81%97%e3%81%9f\/","title":{"rendered":"JSON\u3001Jackson\u3001\u304a\u3088\u3073\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u30d7\u30ed\u30b0\u30e9\u30e0\u3092\u4f7f\u7528\u3057\u305fSpring\u306eRestful Web\u30b5\u30fc\u30d3\u30b9\u306e\u4f8b"},"content":{"rendered":"

Spring\u306fJava EE\u30d5\u30ec\u30fc\u30e0\u30ef\u30fc\u30af\u306e\u4e2d\u3067\u3082\u6700\u3082\u5e83\u304f\u5229\u7528\u3055\u308c\u3066\u3044\u308b\u4e00\u3064\u3067\u3059\u3002\u4ee5\u524d\u306f\u3001Spring MVC\u3092\u4f7f\u7528\u3057\u3066Java\u30d9\u30fc\u30b9\u306eWeb\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u3092\u4f5c\u6210\u3059\u308b\u65b9\u6cd5\u3092\u7d39\u4ecb\u3057\u307e\u3057\u305f\u3002\u4eca\u65e5\u306f\u3001Spring MVC\u3092\u4f7f\u7528\u3057\u3066Spring\u306eRestful Web\u30b5\u30fc\u30d3\u30b9\u3092\u4f5c\u6210\u3057\u3001Rest\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u3067\u30c6\u30b9\u30c8\u3057\u307e\u3059\u3002\u6700\u5f8c\u306b\u3001Spring RestTemplate API\u3092\u4f7f\u7528\u3057\u3066Spring\u306eRestful Web\u30b5\u30fc\u30d3\u30b9\u3092\u547c\u3073\u51fa\u3059\u65b9\u6cd5\u306b\u3064\u3044\u3066\u3082\u8aac\u660e\u3057\u307e\u3059\u3002<\/p>\n

\u30b9\u30d7\u30ea\u30f3\u30b0REST<\/h2>\n

\u79c1\u305f\u3061\u306f\u3001\u6700\u65b0\u30d0\u30fc\u30b8\u30e7\u30f3\u306eSpring 4.0.0.RELEASE\u3092\u4f7f\u7528\u3057\u3001Spring Jackson JSON\u306e\u7d71\u5408\u3092\u5229\u7528\u3057\u3066JSON\u30ec\u30b9\u30dd\u30f3\u30b9\u3092REST\u30b3\u30fc\u30eb\u306e\u5fdc\u7b54\u3068\u3057\u3066\u9001\u4fe1\u3057\u307e\u3059\u3002\u3053\u306e\u30c1\u30e5\u30fc\u30c8\u30ea\u30a2\u30eb\u306f\u3001Spring STS IDE\u3067\u7c21\u5358\u306bSpring MVC\u306e\u30b9\u30b1\u30eb\u30c8\u30f3\u30b3\u30fc\u30c9\u3092\u4f5c\u6210\u3057\u3001\u305d\u308c\u3092\u62e1\u5f35\u3057\u3066Restful\u30a2\u30fc\u30ad\u30c6\u30af\u30c1\u30e3\u3092\u5b9f\u88c5\u3059\u308b\u305f\u3081\u306b\u958b\u767a\u3055\u308c\u3066\u3044\u307e\u3059\u3002STS\u3067\u65b0\u3057\u3044Spring MVC\u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u3092\u4f5c\u6210\u3057\u3001\u6700\u7d42\u7684\u306a\u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u306f\u4ee5\u4e0b\u306e\u753b\u50cf\u306e\u3088\u3046\u306b\u306a\u308a\u307e\u3059\u3002\u305d\u308c\u305e\u308c\u306e\u30b3\u30f3\u30dd\u30fc\u30cd\u30f3\u30c8\u3092\u9806\u756a\u306b\u898b\u3066\u3044\u304d\u307e\u3059\u3002<\/p>\n

Spring\u306eREST\u69cb\u6210XML\u30d5\u30a1\u30a4\u30eb<\/h3>\n

\u79c1\u305f\u3061\u306epom.xml\u30d5\u30a1\u30a4\u30eb\u306f\u4ee5\u4e0b\u306e\u3088\u3046\u306b\u898b\u3048\u307e\u3059\u3002<\/p>\n

<?xml version=\"1.0\" encoding=\"UTF-8\"?>\r\n<project xmlns=\"https:\/\/maven.apache.org\/POM\/4.0.0\" xmlns:xsi=\"https:\/\/www.w3.org\/2001\/XMLSchema-instance\"\r\n\txsi:schemaLocation=\"https:\/\/maven.apache.org\/POM\/4.0.0 https:\/\/maven.apache.org\/maven-v4_0_0.xsd\">\r\n\t<modelVersion>4.0.0<\/modelVersion>\r\n\t<groupId>com.scdev<\/groupId>\r\n\t<artifactId>SpringRestExample<\/artifactId>\r\n\t<name>SpringRestExample<\/name>\r\n\t<packaging>war<\/packaging>\r\n\t<version>1.0.0-BUILD-SNAPSHOT<\/version>\r\n\t<properties>\r\n\t\t<java-version>1.6<\/java-version>\r\n\t\t<org.springframework-version>4.0.0.RELEASE<\/org.springframework-version>\r\n\t\t<org.aspectj-version>1.7.4<\/org.aspectj-version>\r\n\t\t<org.slf4j-version>1.7.5<\/org.slf4j-version>\r\n\t\t<jackson.databind-version>2.2.3<\/jackson.databind-version>\r\n\t<\/properties>\r\n\t<dependencies>\r\n\t\t<!-- Jackson -->\r\n\t\t<dependency>\r\n\t\t\t<groupId>com.fasterxml.jackson.core<\/groupId>\r\n\t\t\t<artifactId>jackson-databind<\/artifactId>\r\n\t\t\t<version>${jackson.databind-version}<\/version>\r\n\t\t<\/dependency>\r\n\t\t<!-- Spring -->\r\n\t\t<dependency>\r\n\t\t\t<groupId>org.springframework<\/groupId>\r\n\t\t\t<artifactId>spring-context<\/artifactId>\r\n\t\t\t<version>${org.springframework-version}<\/version>\r\n\t\t\t<exclusions>\r\n\t\t\t\t<!-- Exclude Commons Logging in favor of SLF4j -->\r\n\t\t\t\t<exclusion>\r\n\t\t\t\t\t<groupId>commons-logging<\/groupId>\r\n\t\t\t\t\t<artifactId>commons-logging<\/artifactId>\r\n\t\t\t\t<\/exclusion>\r\n\t\t\t<\/exclusions>\r\n\t\t<\/dependency>\r\n\t\t<dependency>\r\n\t\t\t<groupId>org.springframework<\/groupId>\r\n\t\t\t<artifactId>spring-webmvc<\/artifactId>\r\n\t\t\t<version>${org.springframework-version}<\/version>\r\n\t\t<\/dependency>\r\n\r\n\t\t<!-- AspectJ -->\r\n\t\t<dependency>\r\n\t\t\t<groupId>org.aspectj<\/groupId>\r\n\t\t\t<artifactId>aspectjrt<\/artifactId>\r\n\t\t\t<version>${org.aspectj-version}<\/version>\r\n\t\t<\/dependency>\r\n\r\n\t\t<!-- Logging -->\r\n\t\t<dependency>\r\n\t\t\t<groupId>org.slf4j<\/groupId>\r\n\t\t\t<artifactId>slf4j-api<\/artifactId>\r\n\t\t\t<version>${org.slf4j-version}<\/version>\r\n\t\t<\/dependency>\r\n\t\t<dependency>\r\n\t\t\t<groupId>org.slf4j<\/groupId>\r\n\t\t\t<artifactId>jcl-over-slf4j<\/artifactId>\r\n\t\t\t<version>${org.slf4j-version}<\/version>\r\n\t\t\t<scope>runtime<\/scope>\r\n\t\t<\/dependency>\r\n\t\t<dependency>\r\n\t\t\t<groupId>org.slf4j<\/groupId>\r\n\t\t\t<artifactId>slf4j-log4j12<\/artifactId>\r\n\t\t\t<version>${org.slf4j-version}<\/version>\r\n\t\t\t<scope>runtime<\/scope>\r\n\t\t<\/dependency>\r\n\t\t<dependency>\r\n\t\t\t<groupId>log4j<\/groupId>\r\n\t\t\t<artifactId>log4j<\/artifactId>\r\n\t\t\t<version>1.2.15<\/version>\r\n\t\t\t<exclusions>\r\n\t\t\t\t<exclusion>\r\n\t\t\t\t\t<groupId>javax.mail<\/groupId>\r\n\t\t\t\t\t<artifactId>mail<\/artifactId>\r\n\t\t\t\t<\/exclusion>\r\n\t\t\t\t<exclusion>\r\n\t\t\t\t\t<groupId>javax.jms<\/groupId>\r\n\t\t\t\t\t<artifactId>jms<\/artifactId>\r\n\t\t\t\t<\/exclusion>\r\n\t\t\t\t<exclusion>\r\n\t\t\t\t\t<groupId>com.sun.jdmk<\/groupId>\r\n\t\t\t\t\t<artifactId>jmxtools<\/artifactId>\r\n\t\t\t\t<\/exclusion>\r\n\t\t\t\t<exclusion>\r\n\t\t\t\t\t<groupId>com.sun.jmx<\/groupId>\r\n\t\t\t\t\t<artifactId>jmxri<\/artifactId>\r\n\t\t\t\t<\/exclusion>\r\n\t\t\t<\/exclusions>\r\n\t\t\t<scope>runtime<\/scope>\r\n\t\t<\/dependency>\r\n\r\n\t\t<!-- @Inject -->\r\n\t\t<dependency>\r\n\t\t\t<groupId>javax.inject<\/groupId>\r\n\t\t\t<artifactId>javax.inject<\/artifactId>\r\n\t\t\t<version>1<\/version>\r\n\t\t<\/dependency>\r\n\r\n\t\t<!-- Servlet -->\r\n\t\t<dependency>\r\n\t\t\t<groupId>javax.servlet<\/groupId>\r\n\t\t\t<artifactId>servlet-api<\/artifactId>\r\n\t\t\t<version>2.5<\/version>\r\n\t\t\t<scope>provided<\/scope>\r\n\t\t<\/dependency>\r\n\t\t<dependency>\r\n\t\t\t<groupId>javax.servlet.jsp<\/groupId>\r\n\t\t\t<artifactId>jsp-api<\/artifactId>\r\n\t\t\t<version>2.1<\/version>\r\n\t\t\t<scope>provided<\/scope>\r\n\t\t<\/dependency>\r\n\t\t<dependency>\r\n\t\t\t<groupId>javax.servlet<\/groupId>\r\n\t\t\t<artifactId>jstl<\/artifactId>\r\n\t\t\t<version>1.2<\/version>\r\n\t\t<\/dependency>\r\n\r\n\t\t<!-- Test -->\r\n\t\t<dependency>\r\n\t\t\t<groupId>junit<\/groupId>\r\n\t\t\t<artifactId>junit<\/artifactId>\r\n\t\t\t<version>4.7<\/version>\r\n\t\t\t<scope>test<\/scope>\r\n\t\t<\/dependency>\r\n\t<\/dependencies>\r\n\t<build>\r\n\t\t<plugins>\r\n\t\t\t<plugin>\r\n\t\t\t\t<artifactId>maven-eclipse-plugin<\/artifactId>\r\n\t\t\t\t<version>2.9<\/version>\r\n\t\t\t\t<configuration>\r\n\t\t\t\t\t<additionalProjectnatures>\r\n\t\t\t\t\t\t<projectnature>org.springframework.ide.eclipse.core.springnature<\/projectnature>\r\n\t\t\t\t\t<\/additionalProjectnatures>\r\n\t\t\t\t\t<additionalBuildcommands>\r\n\t\t\t\t\t\t<buildcommand>org.springframework.ide.eclipse.core.springbuilder<\/buildcommand>\r\n\t\t\t\t\t<\/additionalBuildcommands>\r\n\t\t\t\t\t<downloadSources>true<\/downloadSources>\r\n\t\t\t\t\t<downloadJavadocs>true<\/downloadJavadocs>\r\n\t\t\t\t<\/configuration>\r\n\t\t\t<\/plugin>\r\n\t\t\t<plugin>\r\n\t\t\t\t<groupId>org.apache.maven.plugins<\/groupId>\r\n\t\t\t\t<artifactId>maven-compiler-plugin<\/artifactId>\r\n\t\t\t\t<version>2.5.1<\/version>\r\n\t\t\t\t<configuration>\r\n\t\t\t\t\t<source>1.6<\/source>\r\n\t\t\t\t\t<target>1.6<\/target>\r\n\t\t\t\t\t<compilerArgument>-Xlint:all<\/compilerArgument>\r\n\t\t\t\t\t<showWarnings>true<\/showWarnings>\r\n\t\t\t\t\t<showDeprecation>true<\/showDeprecation>\r\n\t\t\t\t<\/configuration>\r\n\t\t\t<\/plugin>\r\n\t\t\t<plugin>\r\n\t\t\t\t<groupId>org.codehaus.mojo<\/groupId>\r\n\t\t\t\t<artifactId>exec-maven-plugin<\/artifactId>\r\n\t\t\t\t<version>1.2.1<\/version>\r\n\t\t\t\t<configuration>\r\n\t\t\t\t\t<mainClass>org.test.int1.Main<\/mainClass>\r\n\t\t\t\t<\/configuration>\r\n\t\t\t<\/plugin>\r\n\t\t<\/plugins>\r\n\t\t\r\n\t<\/build>\r\n<\/project>\r\n<\/code><\/pre>\n
\u4eca\u65e5\u306e\u65e5\u4ed8\u3092\u57fa\u6e96\u306b\u3057\u3066\u3001STS\u30c4\u30fc\u30eb\u306f\u79c1\u305f\u3061\u306e\u305f\u3081\u306bpom.xml\u30d5\u30a1\u30a4\u30eb\u3092\u751f\u6210\u3057\u307e\u3059\u3002\u305f\u3060\u3057\u3001\u79c1\u306fSpring Framework\u3001AspectJ\u3001SLF4J\u3001\u304a\u3088\u3073Jackson\u306e\u30d0\u30fc\u30b8\u30e7\u30f3\u3092\u6700\u65b0\u306e\u3082\u306e\u306b\u66f4\u65b0\u3057\u307e\u3057\u305f\u3002\u307b\u3068\u3093\u3069\u306e\u90e8\u5206\u306f\u5171\u901a\u3067\u81ea\u52d5\u751f\u6210\u3055\u308c\u307e\u3059\u304c\u3001\u91cd\u8981\u306a\u30dd\u30a4\u30f3\u30c8\u306f\u3001\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u3092JSON\u306b\u5909\u63db\u3057\u305f\u308a\u3001\u9006\u306b\u5909\u63db\u3059\u308b\u305f\u3081\u306bJackson\u306eJSON\u30e9\u30a4\u30d6\u30e9\u30ea\u3092\u4f9d\u5b58\u95a2\u4fc2\u306b\u8ffd\u52a0\u3057\u305f\u3053\u3068\u3067\u3059\u3002<\/p>\n
<?xml version=\"1.0\" encoding=\"UTF-8\"?>\r\n<web-app version=\"2.5\" xmlns=\"https:\/\/java.sun.com\/xml\/ns\/javaee\"\r\n\txmlns:xsi=\"https:\/\/www.w3.org\/2001\/XMLSchema-instance\"\r\n\txsi:schemaLocation=\"https:\/\/java.sun.com\/xml\/ns\/javaee https:\/\/java.sun.com\/xml\/ns\/javaee\/web-app_2_5.xsd\">\r\n\r\n\t<!-- The definition of the Root Spring Container shared by all Servlets and Filters -->\r\n\t<context-param>\r\n\t\t<param-name>contextConfigLocation<\/param-name>\r\n\t\t<param-value>\/WEB-INF\/spring\/root-context.xml<\/param-value>\r\n\t<\/context-param>\r\n\t\r\n\t<!-- Creates the Spring Container shared by all Servlets and Filters -->\r\n\t<listener>\r\n\t\t<listener-class>org.springframework.web.context.ContextLoaderListener<\/listener-class>\r\n\t<\/listener>\r\n\r\n\t<!-- Processes application requests -->\r\n\t<servlet>\r\n\t\t<servlet-name>appServlet<\/servlet-name>\r\n\t\t<servlet-class>org.springframework.web.servlet.DispatcherServlet<\/servlet-class>\r\n\t\t<init-param>\r\n\t\t\t<param-name>contextConfigLocation<\/param-name>\r\n\t\t\t<param-value>\/WEB-INF\/spring\/appServlet\/servlet-context.xml<\/param-value>\r\n\t\t<\/init-param>\r\n\t\t<load-on-startup>1<\/load-on-startup>\r\n\t<\/servlet>\r\n\t\t\r\n\t<servlet-mapping>\r\n\t\t<servlet-name>appServlet<\/servlet-name>\r\n\t\t<url-pattern>\/<\/url-pattern>\r\n\t<\/servlet-mapping>\r\n\r\n<\/web-app>\r\n<\/code><\/pre>\n
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<?xml version=\"1.0\" encoding=\"UTF-8\"?>\r\n<beans xmlns=\"https:\/\/www.springframework.org\/schema\/beans\"\r\n\txmlns:xsi=\"https:\/\/www.w3.org\/2001\/XMLSchema-instance\"\r\n\txsi:schemaLocation=\"https:\/\/www.springframework.org\/schema\/beans https:\/\/www.springframework.org\/schema\/beans\/spring-beans.xsd\">\r\n\t\r\n\t<!-- Root Context: defines shared resources visible to all other web components -->\r\n\t\t\r\n<\/beans>\r\n<\/code><\/pre>\n
\u3053\u306e\u30d5\u30a1\u30a4\u30eb\u306b\u306f\u3001\u3059\u3079\u3066\u306e\u30a6\u30a7\u30d6\u30b3\u30f3\u30dd\u30fc\u30cd\u30f3\u30c8\u3067\u8868\u793a\u3055\u308c\u308b\u5171\u6709\u30ea\u30bd\u30fc\u30b9\u304c\u542b\u307e\u308c\u3066\u3044\u307e\u3059\u3002\u79c1\u305f\u3061\u306f\u30b7\u30f3\u30d7\u30eb\u306aREST\u30b5\u30fc\u30d3\u30b9\u3092\u958b\u767a\u3059\u308b\u4e88\u5b9a\u3067\u3042\u308a\u3001\u305d\u306e\u305f\u3081\u3053\u3053\u3067\u306f\u4f55\u3082\u5909\u66f4\u3057\u3066\u3044\u307e\u305b\u3093\u3002<\/p>\n
<?xml version=\"1.0\" encoding=\"UTF-8\"?>\r\n<beans:beans xmlns=\"https:\/\/www.springframework.org\/schema\/mvc\"\r\n\txmlns:xsi=\"https:\/\/www.w3.org\/2001\/XMLSchema-instance\"\r\n\txmlns:beans=\"https:\/\/www.springframework.org\/schema\/beans\"\r\n\txmlns:context=\"https:\/\/www.springframework.org\/schema\/context\"\r\n\txsi:schemaLocation=\"https:\/\/www.springframework.org\/schema\/mvc https:\/\/www.springframework.org\/schema\/mvc\/spring-mvc.xsd\r\n\t\thttps:\/\/www.springframework.org\/schema\/beans https:\/\/www.springframework.org\/schema\/beans\/spring-beans.xsd\r\n\t\thttps:\/\/www.springframework.org\/schema\/context https:\/\/www.springframework.org\/schema\/context\/spring-context.xsd\">\r\n\r\n\t<!-- DispatcherServlet Context: defines this servlet's request-processing infrastructure -->\r\n\t\r\n\t<!-- Enables the Spring MVC @Controller programming model -->\r\n\t<annotation-driven \/>\r\n\r\n\t<!-- Handles HTTP GET requests for \/resources\/** by efficiently serving up static resources in the ${webappRoot}\/resources directory -->\r\n\t<resources mapping=\"\/resources\/**\" location=\"\/resources\/\" \/>\r\n\r\n\t<!-- Resolves views selected for rendering by @Controllers to .jsp resources in the \/WEB-INF\/views directory -->\r\n\t<beans:bean class=\"org.springframework.web.servlet.view.InternalResourceViewResolver\">\r\n\t\t<beans:property name=\"prefix\" value=\"\/WEB-INF\/views\/\" \/>\r\n\t\t<beans:property name=\"suffix\" value=\".jsp\" \/>\r\n\t<\/beans:bean>\r\n\t\r\n\t<!-- Configure to plugin JSON as request and response in method handler -->\r\n\t<beans:bean class=\"org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter\">\r\n\t\t<beans:property name=\"messageConverters\">\r\n\t\t\t<beans:list>\r\n\t\t\t\t<beans:ref bean=\"jsonMessageConverter\"\/>\r\n\t\t\t<\/beans:list>\r\n\t\t<\/beans:property>\r\n\t<\/beans:bean>\r\n\t\r\n\t<!-- Configure bean to convert JSON to POJO and vice versa -->\r\n\t<beans:bean id=\"jsonMessageConverter\" class=\"org.springframework.http.converter.json.MappingJackson2HttpMessageConverter\">\r\n\t<\/beans:bean>\t\r\n\t\r\n\t<context:component-scan base-package=\"com.scdev.spring.controller\" \/>\r\n\t\r\n<\/beans:beans>\r\n<\/code><\/pre>\n
\u307b\u3068\u3093\u3069\u306e\u90e8\u5206\u306f\u81ea\u52d5\u751f\u6210\u3055\u308c\u3001\u30dc\u30a4\u30e9\u30fc\u30d7\u30ec\u30fc\u30c8\u306e\u8a2d\u5b9a\u304c\u542b\u307e\u308c\u3066\u3044\u307e\u3059\u3002\u305f\u3060\u3057\u3001\u6ce8\u91c8\u30d9\u30fc\u30b9\u306e\u69cb\u6210\u3092\u30b5\u30dd\u30fc\u30c8\u3059\u308b\u305f\u3081\u306e\u6ce8\u91c8\u30c9\u30ea\u30d6\u30f3\u306e\u8981\u7d20\u3084\u3001RequestMappingHandlerAdapter\u306emessageConverters\u306bMappingJackson2HttpMessageConverter\u3092\u7d44\u307f\u8fbc\u3080\u3053\u3068\u306b\u3088\u308a\u3001Jackson API\u304c\u8d77\u52d5\u3057\u3001JSON\u3092Java\u306eBeans\u306b\u5909\u63db\u3059\u308b\u3088\u3046\u306b\u6ce8\u610f\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002\u3053\u306e\u8a2d\u5b9a\u3092\u884c\u3046\u3053\u3068\u3067\u3001\u30ea\u30af\u30a8\u30b9\u30c8\u30dc\u30c7\u30a3\u306bJSON\u3092\u4f7f\u7528\u3057\u3001\u30ec\u30b9\u30dd\u30f3\u30b9\u3067JSON\u30c7\u30fc\u30bf\u3092\u53d7\u3051\u53d6\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n
\u6625\u306eREST\u30e2\u30c7\u30eb\u30af\u30e9\u30b9<\/h3>\n
\u79c1\u305f\u3061\u304c\u66f8\u304f\u7c21\u5358\u306aPOJO\u30af\u30e9\u30b9\u306f\u3001\u79c1\u305f\u3061\u306e\u30ec\u30b9\u30c8\u30d5\u30eb\u306aWeb\u30b5\u30fc\u30d3\u30b9\u30e1\u30bd\u30c3\u30c9\u306e\u5165\u529b\u3068\u51fa\u529b\u3068\u3057\u3066\u6a5f\u80fd\u3059\u308b\u3067\u3057\u3087\u3046\u3002<\/p>\n
package com.scdev.spring.model;\r\n\r\nimport java.io.Serializable;\r\nimport java.util.Date;\r\n\r\nimport com.fasterxml.jackson.databind.annotation.JsonSerialize;\r\nimport com.fasterxml.jackson.databind.ser.std.DateSerializer;\r\n\r\npublic class Employee implements Serializable{\r\n\r\n\tprivate static final long serialVersionUID = -7788619177798333712L;\r\n\t\r\n\tprivate int id;\r\n\tprivate String name;\r\n\tprivate Date createdDate;\r\n\t\r\n\tpublic int getId() {\r\n\t\treturn id;\r\n\t}\r\n\tpublic void setId(int id) {\r\n\t\tthis.id = id;\r\n\t}\r\n\tpublic String getName() {\r\n\t\treturn name;\r\n\t}\r\n\tpublic void setName(String name) {\r\n\t\tthis.name = name;\r\n\t}\r\n\t\r\n\t@JsonSerialize(using=DateSerializer.class)\r\n\tpublic Date getCreatedDate() {\r\n\t\treturn createdDate;\r\n\t}\r\n\tpublic void setCreatedDate(Date createdDate) {\r\n\t\tthis.createdDate = createdDate;\r\n\t}\r\n\t\r\n\t\r\n}\r\n<\/code><\/pre>\n
\u91cd\u8981\u306a\u30dd\u30a4\u30f3\u30c8\u306f\u3001@JsonSerialize \u30a2\u30ce\u30c6\u30fc\u30b7\u30e7\u30f3\u306e\u4f7f\u7528\u3067\u3001Java\u306e\u65e5\u4ed8\u3092JSON\u5f62\u5f0f\u306b\u5909\u63db\u3059\u308b\u305f\u3081\u306b DateSerializer \u30af\u30e9\u30b9\u3092\u4f7f\u3046\u3053\u3068\u3001\u305d\u3057\u3066\u305d\u306e\u9006\u306e\u5909\u63db\u3082\u884c\u3046\u3053\u3068\u3067\u3059\u3002<\/p>\n
Spring Restful web service\u306e\u30a8\u30f3\u30c9\u30dd\u30a4\u30f3\u30c8<\/h3>\n
\u4ee5\u4e0b\u306eREST Web\u30b5\u30fc\u30d3\u30b9\u306e\u30a8\u30f3\u30c9\u30dd\u30a4\u30f3\u30c8\u3092\u7528\u610f\u3057\u307e\u3059\u3002<\/p>\n
\n
\n\n\n\n\n\n\n\n\n\n
Sl. No<\/th>\nURI<\/th>\nHTTP Method<\/th>\nDetails<\/th>\n<\/tr>\n<\/thead>\n
1<\/td>\n\/rest\/emp\/dummy<\/td>\nGET<\/td>\nHealth Check service, to insert a dummy data in the Employees data storage<\/td>\n<\/tr>\n
2<\/td>\n\/rest\/emp\/{id}<\/td>\nGET<\/td>\nTo get the Employee object based on the id<\/td>\n<\/tr>\n
3<\/td>\n\/rest\/emps<\/td>\nGET<\/td>\nTo get the list of all the Employees in the data store<\/td>\n<\/tr>\n
4<\/td>\n\/rest\/emp\/create<\/td>\nPOST<\/td>\nTo create the Employee object and store it<\/td>\n<\/tr>\n
5<\/td>\n\/rest\/emp\/delete\/{id}<\/td>\nPUT<\/td>\nTo delete the Employee object from the data storage based on the id<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/div>\n
\u79c1\u305f\u3061\u306b\u306f\u3001\u3053\u308c\u3089\u306eURI\u3092\u6587\u5b57\u5217\u5b9a\u6570\u3068\u3057\u3066\u5b9a\u7fa9\u3059\u308b\u30af\u30e9\u30b9\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n
package com.scdev.spring.controller;\r\n\r\npublic class EmpRestURIConstants {\r\n\r\n\tpublic static final String DUMMY_EMP = \"\/rest\/emp\/dummy\";\r\n\tpublic static final String GET_EMP = \"\/rest\/emp\/{id}\";\r\n\tpublic static final String GET_ALL_EMP = \"\/rest\/emps\";\r\n\tpublic static final String CREATE_EMP = \"\/rest\/emp\/create\";\r\n\tpublic static final String DELETE_EMP = \"\/rest\/emp\/delete\/{id}\";\r\n}\r\n<\/code><\/pre>\n
Spring\u306eRestful\u30a6\u30a7\u30d6\u30b5\u30fc\u30d3\u30b9\u306e\u30b3\u30f3\u30c8\u30ed\u30fc\u30e9\u30fc\u30af\u30e9\u30b9<\/h3>\n
\u4e0a\u8a18\u3067\u8aac\u660e\u3055\u308c\u305f\u3059\u3079\u3066\u306eWeb\u30b5\u30fc\u30d3\u30b9\u306e\u30a8\u30f3\u30c9\u30dd\u30a4\u30f3\u30c8\u306f\u3001\u79c1\u305f\u3061\u306eEmployeeController\u30af\u30e9\u30b9\u306b\u3088\u3063\u3066\u516c\u958b\u3055\u308c\u307e\u3059\u3002\u30af\u30e9\u30b9\u306e\u30b3\u30fc\u30c9\u3092\u898b\u3066\u3001\u305d\u308c\u305e\u308c\u306e\u30e1\u30bd\u30c3\u30c9\u306b\u3064\u3044\u3066\u8a73\u3057\u304f\u5b66\u3073\u307e\u3057\u3087\u3046\u3002<\/p>\n
package com.scdev.spring.controller;\r\n\r\nimport java.util.ArrayList;\r\nimport java.util.Date;\r\nimport java.util.HashMap;\r\nimport java.util.List;\r\nimport java.util.Map;\r\nimport java.util.Set;\r\n\r\nimport org.slf4j.Logger;\r\nimport org.slf4j.LoggerFactory;\r\nimport org.springframework.stereotype.Controller;\r\nimport org.springframework.web.bind.annotation.PathVariable;\r\nimport org.springframework.web.bind.annotation.RequestBody;\r\nimport org.springframework.web.bind.annotation.RequestMapping;\r\nimport org.springframework.web.bind.annotation.RequestMethod;\r\nimport org.springframework.web.bind.annotation.ResponseBody;\r\n\r\nimport com.scdev.spring.model.Employee;\r\n\r\n\/**\r\n * Handles requests for the Employee service.\r\n *\/\r\n@Controller\r\npublic class EmployeeController {\r\n\t\r\n\tprivate static final Logger logger = LoggerFactory.getLogger(EmployeeController.class);\r\n\t\r\n\t\/\/Map to store employees, ideally we should use database\r\n\tMap<Integer, Employee> empData = new HashMap<Integer, Employee>();\r\n\t\r\n\t@RequestMapping(value = EmpRestURIConstants.DUMMY_EMP, method = RequestMethod.GET)\r\n\tpublic @ResponseBody Employee getDummyEmployee() {\r\n\t\tlogger.info(\"Start getDummyEmployee\");\r\n\t\tEmployee emp = new Employee();\r\n\t\temp.setId(9999);\r\n\t\temp.setName(\"Dummy\");\r\n\t\temp.setCreatedDate(new Date());\r\n\t\tempData.put(9999, emp);\r\n\t\treturn emp;\r\n\t}\r\n\t\r\n\t@RequestMapping(value = EmpRestURIConstants.GET_EMP, method = RequestMethod.GET)\r\n\tpublic @ResponseBody Employee getEmployee(@PathVariable(\"id\") int empId) {\r\n\t\tlogger.info(\"Start getEmployee. ID=\"+empId);\r\n\t\t\r\n\t\treturn empData.get(empId);\r\n\t}\r\n\t\r\n\t@RequestMapping(value = EmpRestURIConstants.GET_ALL_EMP, method = RequestMethod.GET)\r\n\tpublic @ResponseBody List<Employee> getAllEmployees() {\r\n\t\tlogger.info(\"Start getAllEmployees.\");\r\n\t\tList<Employee> emps = new ArrayList<Employee>();\r\n\t\tSet<Integer> empIdKeys = empData.keySet();\r\n\t\tfor(Integer i : empIdKeys){\r\n\t\t\temps.add(empData.get(i));\r\n\t\t}\r\n\t\treturn emps;\r\n\t}\r\n\t\r\n\t@RequestMapping(value = EmpRestURIConstants.CREATE_EMP, method = RequestMethod.POST)\r\n\tpublic @ResponseBody Employee createEmployee(@RequestBody Employee emp) {\r\n\t\tlogger.info(\"Start createEmployee.\");\r\n\t\temp.setCreatedDate(new Date());\r\n\t\tempData.put(emp.getId(), emp);\r\n\t\treturn emp;\r\n\t}\r\n\t\r\n\t@RequestMapping(value = EmpRestURIConstants.DELETE_EMP, method = RequestMethod.PUT)\r\n\tpublic @ResponseBody Employee deleteEmployee(@PathVariable(\"id\") int empId) {\r\n\t\tlogger.info(\"Start deleteEmployee.\");\r\n\t\tEmployee emp = empData.get(empId);\r\n\t\tempData.remove(empId);\r\n\t\treturn emp;\r\n\t}\r\n\t\r\n}\r\n<\/code><\/pre>\n
\u7c21\u5358\u306e\u305f\u3081\u3001\u3059\u3079\u3066\u306e\u5f93\u696d\u54e1\u306e\u30c7\u30fc\u30bf\u3092HashMap empData\u306b\u4fdd\u5b58\u3057\u3066\u3044\u307e\u3059\u3002@RequestMapping\u30a2\u30ce\u30c6\u30fc\u30b7\u30e7\u30f3\u306f\u3001\u30ea\u30af\u30a8\u30b9\u30c8URI\u3092\u30cf\u30f3\u30c9\u30e9\u30e1\u30bd\u30c3\u30c9\u306b\u30de\u30c3\u30d4\u30f3\u30b0\u3059\u308b\u305f\u3081\u306b\u4f7f\u7528\u3055\u308c\u307e\u3059\u3002\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u304cREST\u30e1\u30bd\u30c3\u30c9\u3092\u547c\u3073\u51fa\u3059\u305f\u3081\u306b\u4f7f\u7528\u3059\u308bHTTP\u30e1\u30bd\u30c3\u30c9\u3092\u6307\u5b9a\u3059\u308b\u3053\u3068\u3082\u3067\u304d\u307e\u3059\u3002@ResponseBody\u30a2\u30ce\u30c6\u30fc\u30b7\u30e7\u30f3\u306f\u3001\u5fdc\u7b54\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u3092\u5fdc\u7b54\u30dc\u30c7\u30a3\u306b\u30de\u30c3\u30d4\u30f3\u30b0\u3059\u308b\u305f\u3081\u306b\u4f7f\u7528\u3055\u308c\u307e\u3059\u3002\u30cf\u30f3\u30c9\u30e9\u30e1\u30bd\u30c3\u30c9\u306b\u3088\u3063\u3066\u5fdc\u7b54\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u304c\u8fd4\u3055\u308c\u308b\u3068\u3001MappingJackson2HttpMessageConverter\u304c\u5fdc\u7b54\u3092JSON\u5fdc\u7b54\u306b\u5909\u63db\u3057\u307e\u3059\u3002@PathVariable\u30a2\u30ce\u30c6\u30fc\u30b7\u30e7\u30f3\u306f\u3001REST URI\u304b\u3089\u30c7\u30fc\u30bf\u3092\u62bd\u51fa\u3057\u3001\u30e1\u30bd\u30c3\u30c9\u5f15\u6570\u306b\u30de\u30c3\u30d4\u30f3\u30b0\u3059\u308b\u7c21\u5358\u306a\u65b9\u6cd5\u3067\u3059\u3002@RequestBody\u30a2\u30ce\u30c6\u30fc\u30b7\u30e7\u30f3\u306f\u3001\u30ea\u30af\u30a8\u30b9\u30c8\u30dc\u30c7\u30a3\u306eJSON\u30c7\u30fc\u30bf\u3092Employee\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u306b\u30de\u30c3\u30d4\u30f3\u30b0\u3059\u308b\u305f\u3081\u306b\u4f7f\u7528\u3055\u308c\u307e\u3059\u3002\u3053\u308c\u3082MappingJackson2HttpMessageConverter\u306b\u3088\u308b\u30de\u30c3\u30d4\u30f3\u30b0\u3067\u3059\u3002\u30b3\u30fc\u30c9\u306e\u6b8b\u308a\u306f\u5358\u7d14\u3067\u81ea\u5df1\u89e3\u660e\u3067\u3059\u3002\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u306f\u30c7\u30d7\u30ed\u30a4\u3068\u30c6\u30b9\u30c8\u306e\u6e96\u5099\u304c\u3067\u304d\u3066\u3044\u307e\u3059\u3002WAR\u30d5\u30a1\u30a4\u30eb\u3068\u3057\u3066\u30a8\u30af\u30b9\u30dd\u30fc\u30c8\u3057\u3001\u30b5\u30fc\u30d6\u30ec\u30c3\u30c8\u30b3\u30f3\u30c6\u30ca\u306eWeb\u30a2\u30d7\u30ea\u30c7\u30a3\u30ec\u30af\u30c8\u30ea\u306b\u30b3\u30d4\u30fc\u3059\u308b\u3060\u3051\u3067\u3059\u3002STS\u3067\u30b5\u30fc\u30d0\u30fc\u304c\u8a2d\u5b9a\u3055\u308c\u3066\u3044\u308b\u5834\u5408\u306f\u3001\u30b5\u30fc\u30d0\u30fc\u3067\u5b9f\u884c\u3057\u3066\u30c7\u30d7\u30ed\u30a4\u3067\u304d\u307e\u3059\u3002REST\u547c\u3073\u51fa\u3057\u3092\u5b9f\u884c\u3059\u308b\u305f\u3081\u306bWizTools RestClient\u3092\u4f7f\u7528\u3057\u3066\u3044\u307e\u3059\u304c\u3001Chrome\u62e1\u5f35\u6a5f\u80fd\u306ePostman\u3082\u4f7f\u7528\u3067\u304d\u307e\u3059\u3002\u4ee5\u4e0b\u306e\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8\u306f\u3001\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u306b\u3088\u3063\u3066\u516c\u958b\u3055\u308c\u305fREST API\u306e\u7570\u306a\u308b\u547c\u3073\u51fa\u3057\u3068\u305d\u306e\u51fa\u529b\u3092\u793a\u3057\u3066\u3044\u307e\u3059\u3002\u30d8\u30eb\u30b9\u30c1\u30a7\u30c3\u30af – \u30c0\u30df\u30fc\u5f93\u696d\u54e1\u306e\u53d6\u5f97REST\u547c\u3073\u51fa\u3057\u3001\u5f93\u696d\u54e1\u306e\u4f5c\u6210POST REST\u547c\u3073\u51fa\u3057\uff1a\u30ea\u30af\u30a8\u30b9\u30c8\u306eContent-Type\u304c “application\/json”\u306b\u8a2d\u5b9a\u3055\u308c\u3066\u3044\u308b\u3053\u3068\u3092\u78ba\u8a8d\u3057\u3066\u304f\u3060\u3055\u3044\u3002\u305d\u3046\u3067\u306a\u3044\u5834\u5408\u3001HTTP\u30a8\u30e9\u30fc\u30b3\u30fc\u30c9415\u304c\u8868\u793a\u3055\u308c\u307e\u3059\u3002\u5f93\u696d\u54e1\u306e\u53d6\u5f97REST\u547c\u3073\u51fa\u3057\u3001\u5f93\u696d\u54e1\u306e\u524a\u9664REST\u547c\u3073\u51fa\u3057\u3001\u3059\u3079\u3066\u306e\u5f93\u696d\u54e1\u306e\u53d6\u5f97REST\u547c\u3073\u51fa\u3057<\/p>\n
\u6625\u306e\u30ec\u30b9\u30c8\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u30d7\u30ed\u30b0\u30e9\u30e0<\/h3>\n
Rest\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u306f\u3001\u79c1\u305f\u3061\u306eREST\u30a6\u30a7\u30d6\u30b5\u30fc\u30d3\u30b9\u3092\u30c6\u30b9\u30c8\u3059\u308b\u306e\u306b\u9069\u3057\u3066\u3044\u307e\u3059\u304c\u3001\u307b\u3068\u3093\u3069\u306e\u5834\u5408\u3001\u30d7\u30ed\u30b0\u30e9\u30e0\u3092\u901a\u3058\u3066REST\u30b5\u30fc\u30d3\u30b9\u3092\u547c\u3073\u51fa\u3059\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002Spring RestTemplate\u3092\u4f7f\u7528\u3059\u308b\u3053\u3068\u3067\u3001\u3053\u308c\u3089\u306e\u30e1\u30bd\u30c3\u30c9\u3092\u7c21\u5358\u306b\u547c\u3073\u51fa\u3059\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002\u4ee5\u4e0b\u306f\u3001RestTemplate API\u3092\u4f7f\u7528\u3057\u3066\u79c1\u305f\u3061\u306e\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u306eREST\u30e1\u30bd\u30c3\u30c9\u3092\u547c\u3073\u51fa\u3059\u5358\u7d14\u306a\u30d7\u30ed\u30b0\u30e9\u30e0\u3067\u3059\u3002<\/p>\n
package com.scdev.spring;\r\n\r\nimport java.util.LinkedHashMap;\r\nimport java.util.List;\r\n\r\nimport org.springframework.web.client.RestTemplate;\r\n\r\nimport com.scdev.spring.controller.EmpRestURIConstants;\r\nimport com.scdev.spring.model.Employee;\r\n\r\npublic class TestSpringRestExample {\r\n\r\n\tpublic static final String SERVER_URI = \"https:\/\/localhost:9090\/SpringRestExample\";\r\n\t\r\n\tpublic static void main(String args[]){\r\n\t\t\r\n\t\ttestGetDummyEmployee();\r\n\t\tSystem.out.println(\"*****\");\r\n\t\ttestCreateEmployee();\r\n\t\tSystem.out.println(\"*****\");\r\n\t\ttestGetEmployee();\r\n\t\tSystem.out.println(\"*****\");\r\n\t\ttestGetAllEmployee();\r\n\t}\r\n\r\n\tprivate static void testGetAllEmployee() {\r\n\t\tRestTemplate restTemplate = new RestTemplate();\r\n\t\t\/\/we can't get List<Employee> because JSON convertor doesn't know the type of\r\n\t\t\/\/object in the list and hence convert it to default JSON object type LinkedHashMap\r\n\t\tList<LinkedHashMap> emps = restTemplate.getForObject(SERVER_URI+EmpRestURIConstants.GET_ALL_EMP, List.class);\r\n\t\tSystem.out.println(emps.size());\r\n\t\tfor(LinkedHashMap map : emps){\r\n\t\t\tSystem.out.println(\"ID=\"+map.get(\"id\")+\",Name=\"+map.get(\"name\")+\",CreatedDate=\"+map.get(\"createdDate\"));;\r\n\t\t}\r\n\t}\r\n\r\n\tprivate static void testCreateEmployee() {\r\n\t\tRestTemplate restTemplate = new RestTemplate();\r\n\t\tEmployee emp = new Employee();\r\n\t\temp.setId(1);emp.setName(\"Pankaj Kumar\");\r\n\t\tEmployee response = restTemplate.postForObject(SERVER_URI+EmpRestURIConstants.CREATE_EMP, emp, Employee.class);\r\n\t\tprintEmpData(response);\r\n\t}\r\n\r\n\tprivate static void testGetEmployee() {\r\n\t\tRestTemplate restTemplate = new RestTemplate();\r\n\t\tEmployee emp = restTemplate.getForObject(SERVER_URI+\"\/rest\/emp\/1\", Employee.class);\r\n\t\tprintEmpData(emp);\r\n\t}\r\n\r\n\tprivate static void testGetDummyEmployee() {\r\n\t\tRestTemplate restTemplate = new RestTemplate();\r\n\t\tEmployee emp = restTemplate.getForObject(SERVER_URI+EmpRestURIConstants.DUMMY_EMP, Employee.class);\r\n\t\tprintEmpData(emp);\r\n\t}\r\n\t\r\n\tpublic static void printEmpData(Employee emp){\r\n\t\tSystem.out.println(\"ID=\"+emp.getId()+\",Name=\"+emp.getName()+\",CreatedDate=\"+emp.getCreatedDate());\r\n\t}\r\n}\r\n<\/code><\/pre>\n
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ID=9999,Name=Dummy,CreatedDate=Tue Mar 04 21:02:41 PST 2014\r\n*****\r\nID=1,Name=Pankaj Kumar,CreatedDate=Tue Mar 04 21:02:41 PST 2014\r\n*****\r\nID=1,Name=Pankaj Kumar,CreatedDate=Tue Mar 04 21:02:41 PST 2014\r\n*****\r\n2\r\nID=1,Name=Pankaj Kumar,CreatedDate=1393995761654\r\nID=9999,Name=Dummy,CreatedDate=1393995761381\r\n<\/code><\/pre>\n
\u3082\u3046\u4e00\u3064\u306e\u30dd\u30a4\u30f3\u30c8\u306f\u3001RestTemplate\u306ePUT\u30e1\u30bd\u30c3\u30c9\u306b\u306f\u30ec\u30b9\u30dd\u30f3\u30b9\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u3092\u8a2d\u5b9a\u3059\u308b\u30aa\u30d7\u30b7\u30e7\u30f3\u304c\u306a\u3044\u3053\u3068\u3067\u3059\u3002PUT\u30e1\u30bd\u30c3\u30c9\u306f\u30b5\u30fc\u30d0\u30fc\u306b\u4f55\u304b\u3092\u4fdd\u5b58\u3059\u308b\u305f\u3081\u306b\u4f7f\u7528\u3055\u308c\u308b\u3079\u304d\u3067\u3042\u308a\u3001\u5358\u7d14\u306aHTTP 200\u30b9\u30c6\u30fc\u30bf\u30b9\u30b3\u30fc\u30c9\u3067\u5341\u5206\u3067\u3059\u3002<\/p>\n
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