Spring mvc @PathVariable gives "The request sent by the client was syntactically invalid".
Hi I'm new to Spring MVC and trying some simple examples.
I created a new Spring mvc maven project in eclipse using spring-mvc-archtype '.
I am trying to hit the url and access PathVariables using @PathParam on a map <String, String>
Here is my controller class
@Controller
@RequestMapping(value="/greet")
public class HomeController {
@RequestMapping(value="/welcome/{countryName}/{userName}")
public ModelAndView test(@PathVariable("userName") String userName, @PathVariable("countryName") String countryName) throws IOException{
ModelAndView mav = new ModelAndView("home");
mav.addObject("mymessage", "Welcome To "+countryName+" , Spring MVC - "+userName);
return mav;
}
@RequestMapping(value="/hi/{cn}/{un}")
public ModelAndView hi(@PathVariable Map<String, String> pathVars){
String countryName = pathVars.get("cn");
String userName = pathVars.get("un");
ModelAndView mav = new ModelAndView("home");
mav.addObject("mymessage", "Hi "+userName+" in "+ countryName);
return mav;
}
}
And here is the config class
@Configuration
@EnableWebMvc
@ComponentScan(basePackages="org.gyanbang.kiran.SpringMvc")
public class MvcConfiguration extends WebMvcConfigurerAdapter{
@Bean
public ViewResolver getViewResolver(){
InternalResourceViewResolver resolver = new InternalResourceViewResolver();
resolver.setPrefix("/WEB-INF/views/");
resolver.setSuffix(".jsp");
return resolver;
}
@Override
public void addResourceHandlers(ResourceHandlerRegistry registry) {
registry.addResourceHandler("/resources/**").addResourceLocations("/resources/");
}
}
So when I run this and hit http: // localhost: 8080 / SpringMvc / greet / welcome / India / user1 it works fine and I get the desired output.
But on http: // localhost: 8080 / SpringMvc / greet / hi / India / user1 it gives a 400 error with the message 'The request sent by the client was syntactically incorrect. '
I tried several options and also tried to change the spring-webmvc version to 4.1.6.RELEASE, but in this case I get 404.
Any help would be great. Thanks in advance.
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@PathVariable
can use Map<String,String>
, you need to use <mvc:annotation-driven/>
in ApplicationContaxt.xml
. you can find the code below:
<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"
xmlns:tx="http://www.springframework.org/schema/tx"
xmlns:context="http://www.springframework.org/schema/context"
xsi:schemaLocation="http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc-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/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">
<mvc:annotation-driven/>
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From the very beginning, I really wondered why your solution was not working.
I checked the path variables collected in the map - they work correctly. I think your problem is with the dispatch servlet. You can try to customize one or find some existing solutions, I suggest using a solution from spring.
Please check my solution on git. Pay attention to the build.gradle
file
dependencies {
classpath("org.springframework.boot:spring-boot-gradle-plugin:${springBootVersion}")
}
...
dependencies {
compile("org.springframework.boot:spring-boot-starter-thymeleaf")
runtime('org.springframework.boot:spring-boot-devtools')
}
Link to my git project solution
There are multiple lines of your code, so it should be clear to you. But if something is unclear - do not hesitate and ask in the comments.
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