Web-service using spring in which I have to get the params from the body of my post request? The content of the body is like:-
source=”mysource”
&json=
{
"items": [
{
"username": "test1",
"allowed": true
},
{
"username": "test2",
"allowed": false
}
]
}
And the web-service method looks like:-
@RequestMapping(value = "/saveData", headers="Content-Type=application/json", method = RequestMethod.POST)
@ResponseBody
public ResponseEntity<Boolean> saveData(@RequestBody String a) throws MyException {
return new ResponseEntity<Boolean>(uiRequestProcessor.saveData(a),HttpStatus.OK);
}
Please let me know how do I get the params from the body? I can get the whole body in my string but I don't think that would be a valid approach. Please let me know how do I proceed further.
This question is related to
java
spring
rest
spring-mvc
You will need these imports...
import javax.servlet.*;
import javax.servlet.http.*;
And, if you're using Maven, you'll also need this in the dependencies block of the pom.xml file in your project's base directory.
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>javax.servlet-api</artifactId>
<version>3.0.1</version>
<scope>provided</scope>
</dependency>
Then the above-listed fix by Jason will work:
@ResponseBody
public ResponseEntity<Boolean> saveData(HttpServletRequest request,
HttpServletResponse response, Model model){
String jsonString = request.getParameter("json");
}
You can try using @RequestBodyParam
@RequestMapping(value = "/saveData", headers="Content-Type=application/json", method = RequestMethod.POST)
@ResponseBody
public ResponseEntity<Boolean> saveData(@RequestBodyParam String source,@RequestBodyParam JsonDto json) throws MyException {
...
}
You can get entire post body into a POJO. Following is something similar
@RequestMapping(
value = { "/api/pojo/edit" },
method = RequestMethod.POST,
produces = "application/json",
consumes = ["application/json"])
@ResponseBody
public Boolean editWinner( @RequestBody Pojo pojo) {
Where each field in Pojo (Including getter/setters) should match the Json request object that the controller receives..
In class do like this
@RequestMapping(value = "/saveData", method = RequestMethod.POST)
@ResponseBody
public ResponseEntity<Boolean> saveData(
HttpServletResponse response,
Bean beanName
) throws MyException {
return new ResponseEntity<Boolean>(uiRequestProcessor.saveData(a), HttpStatus.OK);
}
In page do like this:
<form enctype="multipart/form-data" action="<%=request.getContextPath()%>/saveData" method="post" name="saveForm" id="saveForm">
<input type="text" value="${beanName.userName }" id="username" name="userName" />
</from>
You can bind the json to a POJO using MappingJacksonHttpMessageConverter
. Thus your controller signature can read :-
public ResponseEntity<Boolean> saveData(@RequestBody RequestDTO req)
Where RequestDTO needs to be a bean appropriately annotated to work with jackson serializing/deserializing. Your *-servlet.xml file should have the Jackson message converter registered in RequestMappingHandler as follows :-
<list >
<bean class="org.springframework.http.converter.json.MappingJacksonHttpMessageConverter"/>
</list>
</property>
</bean>
Source: Stackoverflow.com