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POAccessing properties of Objects within <#list>
 

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  1. POAccessing properties of Objects within <#list>
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    <h2>Solution</h2> <p>I had previously tried adding accessors to the LineItem class like</p> <pre><code>public String getItemNo() { return itemNo; } </code></pre> <p>and changing the FTL from <code>${lineItem.itemNo}</code> to <code>${lineItem.getItemNo()}</code> but that didn't work. <strong>Solution was to add the accessors but <em>not</em> change the FTL (keep it as <code>${lineItem.itemNo}</code>.</strong></p> <h2>Background</h2> <p>I'm using Freemarker to format some emails. In this email I am required to list a number of lines of product information like on an invoice. My goal is to pass a list of Objects (within a Map) so that I may iterate over them in the FTL. Currently I am having an issue where I am unable to access the objects properties from within the template. I'm probably only missing something small, but at the moment I am stumped.</p> <h2>Java Class using Freemarker</h2> <p>This is a more simplified version of my code in order to more quickly get the point across. <code>LineItem</code> is a public class with public properties (matching the names used here), using a simple constructor to set each of the values. I have also tried using private variables with accessors but that didn't work either.</p> <p>I am also storing this <code>List</code> of <code>LineItem</code> objects within a <code>Map</code> as I also use the Map for other key/value pairs.</p> <pre><code>Map&lt;String, Object&gt; data = new HashMap&lt;String, Object&gt;(); List&lt;LineItem&gt; lineItems = new ArrayList&lt;LineItem&gt;(); String itemNo = "143"; String quantity = "5"; String option = "Dried"; String unitPrice = "12.95"; String shipping = "0.00"; String tax = "GST"; String totalPrice = "64.75"; lineItems.add(new LineItem(itemNo, quantity, option, unitPrice, shipping, tax, totalPrice)); data.put("lineItems", lineItems); Writer out = new StringWriter(); template.process(data, out); </code></pre> <h2>FTL</h2> <pre><code>&lt;#list lineItems as lineItem&gt; &lt;tr&gt; &lt;td&gt;${lineItem.itemNo}&lt;/td&gt; &lt;td&gt;${lineItem.quantity}&lt;/td&gt; &lt;td&gt;${lineItem.type}&lt;/td&gt; &lt;td&gt;${lineItem.price}&lt;/td&gt; &lt;td&gt;${lineItem.shipping}&lt;/td&gt; &lt;td&gt;${lineItem.gst}&lt;/td&gt; &lt;td&gt;${lineItem.totalPrice}&lt;/td&gt; &lt;/tr&gt; &lt;/#list&gt; </code></pre> <h2>Error</h2> <pre><code>FreeMarker template error: The following has evaluated to null or missing: ==&gt; lineItem.itemNo [in template "template.ftl" at line 88, column 95] </code></pre> <h2>LineItem.java</h2> <pre><code>public class LineItem { String itemNo; String quantity; String type; String price; String shipping; String gst; String totalPrice; public LineItem(String itemNo, String quantity, String type, String price, String shipping, String gst, String totalPrice) { this.itemNo = itemNo; this.quantity = quantity; this.type = type; this.price = price; this.shipping = shipping; this.gst = gst; this.totalPrice = totalPrice; } } </code></pre>
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    1. USkin3tik
    1. USkin3tik
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    1. COI don't see anything wrong here. How does the `LineItem` class look like?
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      1. USTom Verelst
    2. CO@TomVerelst Added the class. It's very basic. I should add that printing the contents of the `lineItems` arraylist in the Java class before template processing shows that the properties contain the right values.
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      1. USkin3tik
 

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