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BAEL-2528 FreeMarker common operations (#7586) 

* BAEL-2528 FreeMarker common operations

* BAEL-2528 FreeMarker common operations

* BAEL-2528 FreeMarker common operations
This commit is contained in:
Laurentiu Delcea 2019-08-25 02:12:29 +03:00 committed by Josh Cummings
parent d05905664f
commit 2ae596d54d
3 changed files with 57 additions and 4 deletions
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17
spring-freemarker/src/main/java/com/baeldung/freemarker/controller/SpringController.java
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@ -1,9 +1,10 @@
package com.baeldung.freemarker.controller;
import java.util.ArrayList;
import java.util.List;
import java.util.Locale;
import java.util.*;
import com.baeldung.freemarker.method.LastCharMethod;
import freemarker.template.DefaultObjectWrapperBuilder;
import freemarker.template.Version;
import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.ui.ModelMap;
@ -43,4 +44,12 @@ public class SpringController {
return "redirect:/cars";
}
}
@RequestMapping(value = "/commons", method = RequestMethod.GET)
public String showCommonsPage(Model model) {
model.addAttribute("statuses", Arrays.asList("200 OK", "404 Not Found", "500 Internal Server Error"));
model.addAttribute("lastChar", new LastCharMethod());
model.addAttribute("random", new Random());
model.addAttribute("statics", new DefaultObjectWrapperBuilder(new Version("2.3.28")).build().getStaticModels());
return "commons";
}
}

16
spring-freemarker/src/main/java/com/baeldung/freemarker/method/LastCharMethod.java Normal file
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@ -0,0 +1,16 @@
package com.baeldung.freemarker.method;
import freemarker.template.TemplateMethodModelEx;
import freemarker.template.TemplateModelException;
import org.springframework.util.StringUtils;
import java.util.List;
public class LastCharMethod implements TemplateMethodModelEx {
public Object exec(List arguments) throws TemplateModelException {
if (arguments.size() != 1 || StringUtils.isEmpty(arguments.get(0)))
throw new TemplateModelException("Wrong arguments!");
String argument = arguments.get(0).toString();
return argument.charAt(argument.length() - 1);
}
}

28
spring-freemarker/src/main/webapp/WEB-INF/views/ftl/commons.ftl Normal file
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@ -0,0 +1,28 @@
<p>Testing is a property exists: ${student???c}</p>
<#if status??>
<p>Property value: ${status.reason}</p>
<#else>
<p>Missing property</p>
</#if>
<p>Iterating a sequence:</p>
<#list statuses>
<ul>
<#items as status>
<li>${status}</li>
</#items>
</ul>
<#else>
<p>No statuses available</p>
</#list>
<p>Using static methods</p>
<#assign MathUtils=statics['java.lang.Math']>
<p>PI value: ${MathUtils.PI}</p>
<p>2*10 is: ${MathUtils.pow(2, 10)}</p>
<p>Using bean method</p>
<p>Random value: ${random.nextInt()}</p>
<p>Use custom method</p>
<p>Last char example: ${lastChar('mystring')}</p>