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BAEL-1088 Model, ModelMap and ModelView in Spring MVC (#2590) 

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* Controller methods are written. Test methods are written based on the controller methods and the view is created as an example.
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ahmetcetin39 2017-09-12 01:36:49 +03:00 committed by adamd1985
parent 4cba067620
commit 22015c8007
3 changed files with 118 additions and 0 deletions
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38
spring-all/src/main/java/org/baeldung/controller/controller/PassParametersController.java Normal file
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package org.baeldung.controller.controller;
import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.ui.ModelMap;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.servlet.ModelAndView;
/**
* In this controller, Model, ModelMap and ModelAndView are shown as examples.
* They are all used to pass parameters to JSP pages.
* 04/09/2017
*
* @author Ahmet Cetin
*/
@Controller
public class PassParametersController {
@RequestMapping(value = "/showViewPage", method = RequestMethod.GET)
public String passParametersWithModel(Model model) {
model.addAttribute("message", "Baeldung");
return "viewPage";
}
@RequestMapping(value = "/printViewPage", method = RequestMethod.GET)
public String passParametersWithModelMap(ModelMap map) {
map.addAttribute("welcomeMessage", "welcome");
map.addAttribute("message", "Baeldung");
return "viewPage";
}
@RequestMapping(value = "/goToViewPage", method = RequestMethod.GET)
public ModelAndView passParametersWithModelAndView() {
ModelAndView modelAndView = new ModelAndView("viewPage");
modelAndView.addObject("message", "Baeldung");
return modelAndView;
}
}

11
spring-all/src/main/webapp/WEB-INF/view/viewPage.jsp Normal file
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<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<html>
<head>
<title>Title</title>
</head>
<body>
<div style="padding: 10px; border-radius: 10px; font-size: 30px; text-align: center;">
Web Application. Passed parameter : ${message}
</div>
</body>
</html>

69
spring-all/src/test/java/org/baeldung/controller/PassParametersControllerTest.java Normal file
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package org.baeldung.controller;
import org.junit.Assert;
import org.junit.Before;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.test.context.ContextConfiguration;
import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;
import org.springframework.test.context.web.WebAppConfiguration;
import org.springframework.test.web.servlet.MockMvc;
import org.springframework.test.web.servlet.request.MockMvcRequestBuilders;
import org.springframework.test.web.servlet.setup.MockMvcBuilders;
import org.springframework.web.context.WebApplicationContext;
import org.springframework.web.servlet.ModelAndView;
/**
* This is the test class for {@link org.baeldung.controller.controller.PassParametersController} class.
* 09/09/2017
*
* @author Ahmet Cetin
*/
@RunWith(SpringJUnit4ClassRunner.class)
@WebAppConfiguration
@ContextConfiguration({"classpath:test-mvc.xml"})
public class PassParametersControllerTest {
private MockMvc mockMvc;
@Autowired
private WebApplicationContext wac;
@Before
public void setUp() {
this.mockMvc = MockMvcBuilders.webAppContextSetup(this.wac).build();
}
@Test
public void testPassParametersWithModel() throws Exception {
ModelAndView mv = this.mockMvc.perform(MockMvcRequestBuilders.get("/showViewPage")).andReturn().getModelAndView();
//Validate view
Assert.assertEquals(mv.getViewName(), "viewPage");
//Validate attribute
Assert.assertEquals(mv.getModelMap().get("message").toString(), "Baeldung");
}
@Test
public void testPassParametersWithModelMap() throws Exception {
ModelAndView mv = this.mockMvc.perform(MockMvcRequestBuilders.get("/printViewPage")).andReturn().getModelAndView();
//Validate view
Assert.assertEquals(mv.getViewName(), "viewPage");
//Validate attribute
Assert.assertEquals(mv.getModelMap().get("message").toString(), "Baeldung");
}
@Test
public void testPassParametersWithModelAndView() throws Exception {
ModelAndView mv = this.mockMvc.perform(MockMvcRequestBuilders.get("/goToViewPage")).andReturn().getModelAndView();
//Validate view
Assert.assertEquals(mv.getViewName(), "viewPage");
//Validate attribute
Assert.assertEquals(mv.getModelMap().get("message").toString(), "Baeldung");
}
}