I have given my welcome file in web.xml
But when running the application, it is showing 404 error on http://172.16.2.16:8080/sampletest/
It is a spring application.
web.xml
<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns="http://xmlns.jcp.org/xml/ns/javaee"
xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee http://xmlns.jcp.org/xml/ns/javaee/web-app_3_1.xsd"
id="WebApp_ID" version="3.1">
<display-name>sampletest</display-name>
<welcome-file-list>
<welcome-file>index.html</welcome-file>
</welcome-file-list>
<!-- Spring MVC -->
<servlet>
<servlet-name>dispatcher</servlet-name>
<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
<load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>dispatcher</servlet-name>
<url-pattern>/</url-pattern>
</servlet-mapping>
</web-app>
I am using eclipse luna, java 8, tomcat 8 and maven framework.
index.html file is directly under webapp folder and web.xml is under webapp/WEB-INF folder.
If I use index.jsp instead of index.html, it is working. Then welcome page will load using http://172.16.2.16:8080/sampletest/
The issue is only with welcome file. Otherwise spring configuration is working.
http://localhost:8080/sampletest/test/ will load the data from database.
Error log in console
......................
Jul 10, 2014 12:38:42 PM org.apache.catalina.startup.Catalina start
INFO: Server startup in 4963 ms
Jul 10, 2014 12:38:42 PM org.springframework.web.servlet.DispatcherServlet noHandlerFound
WARNING: No mapping found for HTTP request with URI [/sampletest/] in DispatcherServlet with name 'dispatcher'
index.html
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>Insert title here</title>
</head>
<body>
</body>
</html>
Dispatcher
<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:mvc="http://www.springframework.org/schema/mvc" 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/aop http://www.springframework.org/schema/aop/spring-aop-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/mvc http://www.springframework.org/schema/mvc/spring-mvc-3.1.xsd">
<context:annotation-config />
<mvc:annotation-driven />
<bean class="org.springframework.web.servlet.mvc.annotation.DefaultAnnotationHandlerMapping" />
<context:component-scan base-package="com.sample.test" />
<tx:annotation-driven transaction-manager="transactionManager" />
<bean id="sessionFactory" class="org.springframework.orm.hibernate3.annotation.AnnotationSessionFactoryBean">
<property name="packagesToScan">
<array>
<value>com.sample.test.domain</value>
</array>
</property>
<property name="hibernateProperties">
<props>
<prop key="hibernate.dialect">org.hibernate.dialect.MySQL5Dialect</prop>
<prop key="hibernate.show_sql">true</prop>
<prop key="hibernate.format_sql">false</prop>
<prop key="hibernate.use_sql_comments">false</prop>
<prop key="hibernate.hbm2ddl.auto">update</prop>
<prop key="hibernate.connection.characterEncoding">UTF-8</prop>
<prop key="hibernate.connection.useUnicode">true</prop>
<prop key="hibernate.connection.CharSet">UTF-8</prop>
</props>
</property>
<property name="dataSource">
<ref bean="dataSource" />
</property>
</bean>
<bean id="dataSource" class="com.mchange.v2.c3p0.ComboPooledDataSource">
<property name="driverClass" value="com.mysql.jdbc.Driver" />
<property name="jdbcUrl" value="jdbc:mysql://localhost:3306/sampletest?autoConnect=true" />
<property name="user" value="root" />
<property name="password" value="root" />
</bean>
<bean id="hibernateTemplate" class="org.springframework.orm.hibernate3.HibernateTemplate">
<property name="sessionFactory" ref="sessionFactory" />
</bean>
<!-- HibernateTransactionManager -->
<bean id="transactionManager"
class="org.springframework.orm.hibernate3.HibernateTransactionManager">
<property name="sessionFactory" ref="sessionFactory" />
</bean>
<bean id="openSessionInViewInterceptor"
class="org.springframework.orm.hibernate3.support.OpenSessionInViewInterceptor">
<property name="sessionFactory">
<ref local="sessionFactory" />
</property>
<property name="flushModeName">
<value>FLUSH_AUTO</value>
</property>
</bean>
</beans>
Controller
package com.sample.test.controller;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.annotation.Qualifier;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.bind.annotation.ResponseBody;
import com.sample.test.dto.Response;
import com.sample.test.facade.AccelFlowFacade;
#Controller
public class SampleTestController {
#Autowired
#Qualifier("sampleTestFacade")
SampleTestFacade sampleTestFacade;
public SampleTestFacade getSampleTestFacade() {
return sampleTestFacade;
}
public void setSampleTestFacade(SampleTestFacade sampleTestFacade) {
this.sampleTestFacade= sampleTestFacade;
}
#RequestMapping(value = "/test", method = RequestMethod.GET)
public #ResponseBody Response display() throws Exception {
sampleTestFacade.disaply();
Response res = new Response();
return res;
}
}
Try adding <mvc:default-servlet-handler/> in your dispatcher-servlet.xml.
See here for details.
You have mapped all your incoming requests to the dispatcher here,
<servlet-mapping>
<servlet-name>dispatcher</servlet-name>
<url-pattern>/</url-pattern>
</servlet-mapping>
So all your URL requests for the application goes inside the dispatcher as '/' maps all incoming requests . check for the stacktraces in your application server log
update:
You get the below warning because there are no handler for the '/' pattern,
WARNING: No mapping found for HTTP request with URI [/AccelFlow/] in
DispatcherServlet with name 'dispatcher'
You can do either of below options ,
Map a url with '/' to the controller
Add a specific URL pattern to the spring dispatcher such as .htm or .do as you wish
Modify your web.xml,
<servlet-mapping>
<servlet-name>dispatcher</servlet-name>
<url-pattern>*.htm</url-pattern>
</servlet-mapping>
And in your controller,
#RequestMapping(value = "/test.htm", method = RequestMethod.GET)
public #ResponseBody Response display() throws Exception {
accelFlowFacade.disaply();
Response res = new Response();
return res;
}
At the startup by default all incoming requests are mapping to '/' pattern as you write in the web.xml:
<servlet-mapping>
<servlet-name>dispatcher</servlet-name>
<url-pattern>/</url-pattern>
</servlet-mapping>
update:
Try to map a Controller method for the default view:
#RequestMapping(value = "/", method = GET)
public String welcome() {
return "index";
}
Add viewresolver to dispather-servlet.xml:
<bean id="viewResolver"
class="org.springframework.web.servlet.view.InternalResourceViewResolver"
p:prefix="/"
p:suffix=".jsp" />
Remove welcome file from the web.xml as automatically spring will search for index page by default:
<welcome-file-list>
<welcome-file>index.jsp</welcome-file>
</welcome-file-list>
Welcome file can be access using following changes.
change 1. add resource path in dispatcher as following :
<mvc:resources mapping="/" location="/index.html" />
change 2. add controller handler like following :
#Controller
public class RestController {
#RequestMapping(value = "/", method = RequestMethod.GET)
public String welcome() {
return "index.html";
}
}
changes 3: index.html file should be in WebContent folder in project.
Note : If you are not able to add mvc bean in dispatcher servlet file then add
xmlns:mvc="http://www.springframework.org/schema/mvc
in dispatcher servlet config file.
using <mvc:resources mapping="/" location="/index.html" /> is goods for static pages , however changing it to
#RequestMapping(value = "/", method = RequestMethod.GET)
public String welcome() {
return "index.html";
}
is not good design as all model in other controllers may point back to index page, instead use
<mvc:resources mapping="/" location="/redfresh.html" />
and make refresh page such
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8"/>
<meta http-equiv="refresh" content="0;URL='/index'" />
</head>
<body>
</body>
</html>
and point in controller to index such:
#Controller
public class indexPageController {
#RequestMapping(value = "/index", method = RequestMethod.GET, produces = "text/html")
public String index() {
return "index";
}
}
Just add your index.html to webContent folder. Because welcome file is searched in that folder itself.
Related
How to resolve 404 error showing "The requested resource is not available".While running spring mvc hibernate program in intellij idea.There for we are using server configuration as Tomcat 8 with the help of Maven
Error that am getting is.......
INFO : org.hibernate.cfg.Environment - HHH000206: hibernate.properties not found
INFO : org.hibernate.cfg.Environment - HHH000021: Bytecode provider name : javassist
WARN org.hibernate.engine.jdbc.internal.JdbcServicesImpl - HHH000342: Could not obtain connection to query metadata : Cannot load JDBC driver class 'com.mysql.jdbc.Driver'
INFO : org.hibernate.dialect.Dialect - HHH000400: Using dialect: org.hibernate.dialect.MySQLDialect
INFO : org.hibernate.engine.jdbc.internal.LobCreatorBuilder - HHH000422: Disabling contextual LOB creation as connection was null
INFO : org.hibernate.engine.transaction.internal.TransactionFactoryInitiator - HHH000399: Using default transaction strategy (direct JDBC transactions)
INFO : org.hibernate.hql.internal.ast.ASTQueryTranslatorFactory - HHH000397: Using ASTQueryTranslatorFactory
INFO : org.springframework.web.servlet.DispatcherServlet - FrameworkServlet 'appServlet': initialization completed in 9709 ms
[2018-11-01 01:10:28,950] Artifact SpringMVCHibernate:war: Artifact is deployed successfully
[2018-11-01 01:10:28,950] Artifact SpringMVCHibernate:war: Deploy took 21,936 milliseconds
WARN : org.springframework.web.servlet.PageNotFound - No mapping found for HTTP request with URI [/] in DispatcherServlet with name 'appServlet'
WARN : org.springframework.web.servlet.PageNotFound - No mapping found for HTTP request with URI [/] in DispatcherServlet with name 'appServlet'
WARN : org.springframework.web.servlet.PageNotFound - No mapping found for HTTP request with URI [/] in DispatcherServlet with name 'appServlet'
My xml file configurations are given below
servlet-context.xml
<?xml version="1.0" encoding="UTF-8"?>
<beans:beans xmlns="http://www.springframework.org/schema/mvc"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:beans="http://www.springframework.org/schema/beans"
xmlns:context="http://www.springframework.org/schema/context" xmlns:tx="http://www.springframework.org/schema/tx"
xsi:schemaLocation="http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc.xsd
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/tx http://www.springframework.org/schema/tx/spring-tx-4.0.xsd">
<!-- DispatcherServlet Context: defines this servlet's request-processing
infrastructure -->
<!-- Enables the Spring MVC #Controller programming model -->
<annotation-driven />
<!-- Handles HTTP GET requests for /resources/** by efficiently serving
up static resources in the ${webappRoot}/resources directory -->
<resources mapping="/resources/**" location="/resources/" />
<!-- Resolves views selected for rendering by #Controllers to .jsp resources
in the /WEB-INF/views directory -->
<beans:bean
class="org.springframework.web.servlet.view.InternalResourceViewResolver">
<beans:property name="prefix" value="/WEB-INF/views/" />
<beans:property name="suffix" value=".jsp" />
</beans:bean>
<beans:bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource"
destroy-method="close">
<beans:property name="driverClassName" value="com.mysql.jdbc.Driver" />
<beans:property name="url"
value="jdbc:mysql://localhost:3306/*****" />
<beans:property name="username" value="*****" />
<beans:property name="password" value="*****" />
</beans:bean>
<!-- Hibernate 4 SessionFactory Bean definition -->
<beans:bean id="hibernate4AnnotatedSessionFactory"
class="org.springframework.orm.hibernate4.LocalSessionFactoryBean">
<beans:property name="dataSource" ref="dataSource" />
<beans:property name="annotatedClasses">
<beans:list>
<beans:value>com.journaldev.spring.model.Person</beans:value>
</beans:list>
</beans:property>
<beans:property name="hibernateProperties">
<beans:props>
<beans:prop key="hibernate.dialect">org.hibernate.dialect.MySQLDialect
</beans:prop>
<beans:prop key="hibernate.show_sql">true</beans:prop>
</beans:props>
</beans:property>
</beans:bean>
<beans:bean id="personDAO" class="com.journaldev.spring.dao.PersonDAOImpl">
<beans:property name="sessionFactory" ref="hibernate4AnnotatedSessionFactory" />
</beans:bean>
<beans:bean id="personService" class="com.journaldev.spring.service.PersonServiceImpl">
<beans:property name="personDAO" ref="personDAO"></beans:property>
</beans:bean>
<context:component-scan base-package="com.journaldev.spring" />
<tx:annotation-driven transaction-manager="transactionManager"/>
<beans:bean id="transactionManager" class="org.springframework.orm.hibernate4.HibernateTransactionManager">
<beans:property name="sessionFactory" ref="hibernate4AnnotatedSessionFactory" />
</beans:bean>
root-context.xml
<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd">
<!-- Root Context: defines shared resources visible to all other web components -->
</beans>
web.xml
<?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">
<!-- The definition of the Root Spring Container shared by all Servlets and Filters -->
<context-param>
<param-name>contextConfigLocation</param-name>
<param-value>/WEB-INF/spring/root-context.xml</param-value>
</context-param>
<!-- Creates the Spring Container shared by all Servlets and Filters -->
<!-- <listener>
<listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
</listener> -->
<!-- Processes application requests -->
<servlet>
<servlet-name>appServlet</servlet-name>
<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
<init-param>
<param-name>contextConfigLocation</param-name>
<param-value>/WEB-INF/spring/appServlet/servlet-context.xml</param-value>
</init-param>
<load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>appServlet</servlet-name>
<url-pattern>/</url-pattern>
</servlet-mapping>
And also am added Dependency in pom.xml
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
<version>5.1.31</version>
</dependency>
My controller class are given below
PersonController.java
#Controller
public class PersonController
{
private PersonService personService;
#Autowired(required=true)
#Qualifier(value="personService")
public void setPersonService(PersonService ps)
{
this.personService = ps;
}
#RequestMapping(value = "/persons", method = RequestMethod.GET)
public String listPersons(Model model)
{
model.addAttribute("person", new Person());
model.addAttribute("listPersons", this.personService.listPersons());
return "person";
}
//For add and update person both
#RequestMapping(value= "/person/add", method = RequestMethod.POST)
public String addPerson(#ModelAttribute("person") Person p){
if(p.getId() == 0)
{
//new person, add it
this.personService.addPerson(p);
}
else
{
//existing person, call update
this.personService.updatePerson(p);
}
return "redirect:/persons";
}
#RequestMapping("/remove/{id}")
public String removePerson(#PathVariable("id") int id){
this.personService.removePerson(id);
return "redirect:/persons";
}
#RequestMapping("/edit/{id}")
public String editPerson(#PathVariable("id") int id, Model model){
model.addAttribute("person", this.personService.getPersonById(id));
model.addAttribute("listPersons", this.personService.listPersons());
return "person";
}
}
You must put the mysql-connector jar inside your tomcat's "lib" folder, not in pom.
Why must the JDBC driver be put in TOMCAT_HOME/lib folder?
I am doing project on Spring MVC with html file as viewResolver. Already my project done in ftl (freemarker template) files as viewResolver perfectly. But I want to do conversion of all ftl files into html files. Hence I have tried hard for two days and do some configuration changes in view resolver like below, but nothing worked.
My original code in applicationContext.xml
<bean id="viewResolver"
class="org.springframework.web.servlet.view.freemarker.FreeMarkerViewResolver">
<property name="cache" value="true" />
<property name="prefix" value="/WEB-INF/views/" />
<property name="suffix" value=".ftl" />
<property name="exposeSpringMacroHelpers" value="true" />
<property name="exposeRequestAttributes" value="true" />
<property name="allowRequestOverride" value="false" />
<property name="exposeSessionAttributes" value="true" />
<property name="allowSessionOverride" value="false" />
<property name="exposePathVariables" value="true" />
<property name="requestContextAttribute" value="rc" />
</bean>
I have made some changes like below
<bean id="viewResolver"
class="org.springframework.web.servlet.view.InternalResourceViewResolver">
<property name="prefix" value="/WEB-INF/views/" />
<property name="suffix" value=".html" />
</bean>
My DispatcherServlet configuration
<servlet>
<servlet-name>appServlet</servlet-name>
<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
<init-param>
<param-name>contextConfigLocation</param-name>
<param-value></param-value>
</init-param>
<load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>appServlet</servlet-name>
<url-pattern>/</url-pattern>
</servlet-mapping>
My html files are in "/WEB-INF/views/" folder. What changes I need to do to run the html files. Any alternate way also warmly welcome. Thanks in advance guys...
HTML pages meant for implementing static views, we have great feature in spring to render the static resources like html, css and images i.e.
<mvc:resources mapping="/static/**" location="/WEB-INF/static/" />
Similar question asked here SpringViewResolver for HTML views
================================ SOLUTION ========================================
Newly created Folder structure:
WEB-INF
`-static
|-html
`-index.html
Spring config:
<resources mapping="/static/**" location="/WEB-INF/static/" />
<beans:bean
class="org.springframework.web.servlet.view.InternalResourceViewResolver">
<beans:property name="prefix" value="" />
<beans:property name="suffix" value=".html" />
</beans:bean>
My web.xml
<servlet>
<servlet-name>appServlet</servlet-name>
<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
<init-param>
<param-name>contextConfigLocation</param-name>
<param-value></param-value>
</init-param>
<load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>appServlet</servlet-name>
<url-pattern>/</url-pattern>
</servlet-mapping>
Controller method:
#RequestMapping(value = "/", method = RequestMethod.GET)
public String homePage(ModelMap model, HttpServletRequest servletRequest, HttpServletResponse response) {
String returnText = "static/html/index";
return returnText;
}
I have searched and implemented various ways. Its now working like a boss.
Below link helped me and stiched my time a lot. Also need to work various html files with this solution.
Spring MVC ViewResolver not mapping to HTML files
I've got a spring project using tiles as UI framework. I wanted to provide a generic controller handling static html files (no dynamic content - so no custom controllers). The generic controller is org.springframework.web.servlet.mvc.UrlFilenameViewController. The whole thing works for if I put static content in .jsp extension files. As long as I try to put them in .html - I get 404 error and I want to figure out why.
web.xml:
<display-name>
lyricsBase
</display-name>
<servlet>
<servlet-name>lyricsBaseApp</servlet-name>
<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
<load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>lyricsBaseApp</servlet-name>
<url-pattern>*.html</url-pattern>
</servlet-mapping>
<welcome-file-list>
<welcome-file>list.html</welcome-file>
</welcome-file-list>
<error-page>
<error-code>404</error-code>
<location>/WEB-INF/jsp/404.jsp</location>
</error-page>
lyricsBaseApp-servlet.xml:
<bean id="tilesConfigurer" class="org.springframework.web.servlet.view.tiles3.TilesConfigurer">
<property name="definitions">
<list>
<value>/WEB-INF/tiles.xml</value>
</list>
</property>
</bean>
<bean id="tilesViewResolver" class="org.springframework.web.servlet.view.UrlBasedViewResolver">
<property name="viewClass" value="org.springframework.web.servlet.view.tiles3.TilesView" />
</bean>
<bean id="staticViewController" class="org.springframework.web.servlet.mvc.UrlFilenameViewController">
<property name="prefix" value="t." />
</bean>
<bean id="urlMapping" class="org.springframework.web.servlet.handler.SimpleUrlHandlerMapping">
<property name="mappings">
<props>
<prop key="/list.html">jukeboxController</prop>
<prop key="/display.html">songController</prop>
<prop key="/static/about.html">staticViewController</prop>
</props>
</property>
</bean>
tiles.xml:
<definition name="t.base" template="/WEB-INF/tiles/base.jsp">
<put-attribute name="title" value="SomeTitle"/>
</definition>
<definition name="t.static/about" extends="t.base">
<put-attribute name="body" value="/WEB-INF/static/about.jsp"/>
<put-attribute name="title" expression="about"/>
</definition>
This is the URL I'm accessing the static page at: http://localhost:8084/lyricsBase/static/about.html
I've got both about.html and about.jsp files in the proper directory. If a
<put-attribute name="body" value="/WEB-INF/static/about.jsp"/>
to
<put-attribute name="body" value="/WEB-INF/static/about.html"/>
I start getting the warning in tomcat:
2013-02-16 18:21:45 org.springframework.web.servlet.DispatcherServlet noHandlerFound
WARNING: No mapping found for HTTP request with URI [/lyricsBase/WEB-INF/static/about.html] in DispatcherServlet with name 'lyricsBaseApp'
Why?
I know this question was asked 2 years ago, but I encountered the same problem and maybe sometime someone else.
I think Tiles only supports JSP, Freemarker or Velocity. I could find a workaround. Define a static handler like so:
#Configuration
#EnableWebMvc
#ComponentScan(value = "com.xy"))
public class WebConfig extends WebMvcConfigurerAdapter {
#Override
public void addResourceHandlers(final ResourceHandlerRegistry registry) {
registry.addResourceHandler("/lyricsBase/static/**")
.addResourceLocations("/WEB-INF/static/");
}
}
now you should be able to use your html template by tiles:
<put-attribute name="body" value="/lyricsBase/static/about.html"/>
What I am aiming to do is to configure spring mvc 3 to not return “null” object in json response.
I've asked the question how to configure spring mvc 3 to not return "null" object in json response? . And the suggestion I got is to configure the ObjectMapper, setting the serialization inclusion to JsonSerialize.Inclusion.NON_NULL. So Based on Spring configure #ResponseBody JSON format, I did the following changes in spring config file. But I got the error "Rejected bean name 'jacksonObjectMapper': no URL paths identified org.springframework.web.servlet.mvc.annotation.DefaultAnnotationHandlerMapping:86-AbstractDetectingUrlHandlerMapping.java" during app startup.
<?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: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/mvc http://www.springframework.org/schema/mvc/spring-mvc-3.0.xsd">
<!-- Configures the #Controller programming model -->
<mvc:annotation-driven />
<!-- Forwards requests to the "/" resource to the "welcome" view -->
<!--<mvc:view-controller path="/" view-name="welcome"/>-->
<!-- Configures Handler Interceptors -->
<mvc:interceptors>
<!-- Changes the locale when a 'locale' request parameter is sent; e.g. /?locale=de -->
<bean class="org.springframework.web.servlet.i18n.LocaleChangeInterceptor" />
</mvc:interceptors>
<!-- Saves a locale change using a cookie -->
<bean id="localeResolver" class="org.springframework.web.servlet.i18n.CookieLocaleResolver" />
<bean class="org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter">
<property name="messageConverters">
<list>
<bean class="org.springframework.http.converter.json.MappingJacksonHttpMessageConverter">
<property name="objectMapper" ref="jacksonObjectMapper" />
</bean>
</list>
</property>
</bean>
<bean id="jacksonObjectMapper" class="org.codehaus.jackson.map.ObjectMapper" />
<bean id="jacksonSerializationConfig" class="org.codehaus.jackson.map.SerializationConfig"
factory-bean="jacksonObjectMapper" factory-method="getSerializationConfig" />
<bean class="org.springframework.beans.factory.config.MethodInvokingFactoryBean">
<property name="targetObject" ref="jacksonSerializationConfig" />
<property name="targetMethod" value="setSerializationInclusion" />
<property name="arguments">
<list>
<value type="org.codehaus.jackson.map.annotate.JsonSerialize.Inclusion">NON_DEFAULT</value>
</list>
</property>
</bean>
<!-- Resolves view names to protected .jsp resources within the /WEB-INF/views directory -->
<bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">
<property name="prefix" value="/WEB-INF/views/"/>
<property name="suffix" value=".jsp"/>
</bean>
</beans>
I have no idea why it's been rejected. Any suggestion is greatly appreciated!
<mvc:annotation-driven /> and AnnotationMethodHandlerAdapter cannot be used together. (ref: spring forum thread). Possible solution
do not use <mvc:annotation-driven/>. Declaring bean: DefaultAnnotationHandlerMapping
and AnnotationMethodHandlerAdapter and other settings like validation, formatting.
use spring 3.1, which has <mvc:message-converters> (ref: Spring jira)
a sample of json response looks like this:
{"publicId":"123","status":null,"partner":null,"description":null}
It would be nice to truncate out all null objects in the response. In this case, the response would become {"publicId":"123"}.
Any advice? Thanks!
P.S: I think I can do that in Jersey. Also I believe they both use Jackson as the JSON processer.
Added Later:
My configuration:
<?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"
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">
<!-- Scans the classpath of this application for #Components to deploy as beans -->
<context:component-scan base-package="com.SomeCompany.web" />
<!-- Application Message Bundle -->
<bean id="messageSource" class="org.springframework.context.support.ReloadableResourceBundleMessageSource">
<property name="basename" value="/WEB-INF/messages/messages" />
<property name="cacheSeconds" value="0" />
</bean>
<!-- Configures Spring MVC -->
<import resource="mvc-config.xml" />
<?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: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/mvc http://www.springframework.org/schema/mvc/spring-mvc-3.0.xsd">
<!-- Configures the #Controller programming model -->
<mvc:annotation-driven />
<!-- Forwards requests to the "/" resource to the "welcome" view -->
<!--<mvc:view-controller path="/" view-name="welcome"/>-->
<!-- Configures Handler Interceptors -->
<mvc:interceptors>
<!-- Changes the locale when a 'locale' request parameter is sent; e.g. /?locale=de -->
<bean class="org.springframework.web.servlet.i18n.LocaleChangeInterceptor" />
</mvc:interceptors>
<!-- Saves a locale change using a cookie -->
<bean id="localeResolver" class="org.springframework.web.servlet.i18n.CookieLocaleResolver" />
<!--<bean class="org.springframework.web.servlet.view.ContentNegotiatingViewResolver">
<property name="mediaTypes">
<map>
<entry key="atom" value="application/atom+xml"/>
<entry key="html" value="text/html"/>
<entry key="json" value="application/json"/>
<entry key="xml" value="text/xml"/>
</map>
</property>
<property name="viewResolvers">
<list>
<bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">
<property name="prefix" value="/WEB-INF/views/"/>
<property name="suffix" value=".jsp"/>
</bean>
</list>
</property>
<property name="defaultViews">
<list>
<bean class="org.springframework.web.servlet.view.json.MappingJacksonJsonView" />
<bean class="org.springframework.web.servlet.view.xml.MarshallingView" >
<property name="marshaller">
<bean class="org.springframework.oxm.jaxb.Jaxb2Marshaller" />
</property>
</bean>
</list>
</property>
</bean>
-->
<!-- Resolves view names to protected .jsp resources within the /WEB-INF/views directory -->
<bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">
<property name="prefix" value="/WEB-INF/views/"/>
<property name="suffix" value=".jsp"/>
</bean>
My code:
#Controller
public class SomeController {
#RequestMapping(value = "/xyz", method = {RequestMethod.GET, RequestMethod.HEAD},
headers = {"x-requested-with=XMLHttpRequest","Accept=application/json"}, params = "!closed")
public #ResponseBody
List<AbcTO> getStuff(
.......
}
}
Yes, you can do this for individual classes by annotating them with #JsonSerialize(include=JsonSerialize.Inclusion.NON_NULL) or you can do it across the board by configuring your ObjectMapper, setting the serialization inclusion to JsonSerialize.Inclusion.NON_NULL.
Here is some info from the Jackson FAQ: http://wiki.fasterxml.com/JacksonAnnotationSerializeNulls.
Annotating the classes is straightforward, but configuring the ObjectMapper serialization config slightly trickier. There is some specific info on doing the latter here.
Doesn't answer the question but this is the second google result.
If anybody comes here and wants do do it for Spring 4 (as it happened to me), you can use the annotation
#JsonInclude(Include.NON_NULL)
on the returning class.
As mentioned in the comments, and in case anyone is confused, the annotation should be used in the class that will be converted to JSON.
If using Spring Boot for REST, you can do it in application.properties:
spring.jackson.serialization-inclusion=NON_NULL
source
Java configuration for the above. Just place the below in your #Configuration class.
#Bean
public Jackson2ObjectMapperBuilder objectMapperBuilder() {
Jackson2ObjectMapperBuilder builder = new Jackson2ObjectMapperBuilder();
builder.serializationInclusion(JsonInclude.Include.NON_NULL);
return builder;
}