{"type":"doc","content":[{"type":"extension","attrs":{"extensionType":"com.atlassian.confluence.macro.core","extensionKey":"mockup","parameters":{"macroParams":{"":{"value":"Patient-search"},"1":{"value":"5"}},"macroMetadata":{"macroId":{"value":"6e8c7cfd-946d-4bba-974e-a885ff675c93"},"schemaVersion":{"value":"1"},"placeholder":[{"type":"image","data":{"url":"https://bas20.balsamiq.com/confluence/placeholder?=Patient-search&1=5"}}],"title":"Balsamiq Wireframes"}}}},{"type":"paragraph","content":[{"text":"JSP, or Java Server Pages, is a view technology for servlets. You can find tutorials and documentation all over the place, for example ","type":"text"},{"text":"this tutorial","type":"text","marks":[{"type":"link","attrs":{"href":"http://www.jsptut.com/"}}]},{"text":" or ","type":"text"},{"text":"this reference","type":"text","marks":[{"type":"link","attrs":{"href":"http://java.sun.com/products/jsp/docs.html"}}]}]},{"type":"paragraph","content":[{"text":"Some code snippets:","type":"text"}]},{"type":"heading","attrs":{"level":2},"content":[{"text":"Expressions and Scriptlets (these are generally bad style)","type":"text"}]},{"type":"codeBlock","content":[{"text":"\nThe time is now <%= new Date() %>\n<% for (int i = 0; i < 5; ++i) { %>\n A circle with radius <%= i %> has area <%= i * i * 3.141592 %>\n
\n<% } %>\n\n","type":"text"}]},{"type":"paragraph","content":[{"text":"You also have access to variables like pageContext, request, response, and session.","type":"text"}]},{"type":"heading","attrs":{"level":2},"content":[{"text":"Custom Tag Libraries and JSTL-EL","type":"text"}]},{"type":"paragraph","content":[{"text":"JSTL Expression Language lets you write expressions between ${ and }. You can do standard math expressions, and you can reference bean properties like ${person.gender}, list elements like ${patients","type":"text"},{"text":"2","type":"text","marks":[{"type":"link","attrs":{"href":"https://openmrs.atlassian.net/wiki/pages/createpage.action?spaceKey=Archives&title=2&linkCreation=true&fromPageId=26312497"}}]},{"text":"}, map elements like ${map","type":"text"},{"text":"'key'","type":"text","marks":[{"type":"link","attrs":{"href":"https://openmrs.atlassian.net/wiki/pages/createpage.action?spaceKey=archive&title=%27key%27"}}]},{"text":"}.","type":"text"}]},{"type":"paragraph","content":[{"text":"The \"core\" tag library is defined in c-rt.tld in your openmrs project or documented ","type":"text"},{"text":"here","type":"text","marks":[{"type":"link","attrs":{"href":"http://java.sun.com/products/jsp/jstl/1.1/docs/tlddocs/index.html"}}]},{"text":". It includes tags like:","type":"text"},{"type":"hardBreak"},{"text":"\n","type":"text"},{"type":"hardBreak"},{"text":"\n","type":"text"},{"type":"hardBreak"},{"text":"\n","type":"text"},{"type":"hardBreak"},{"text":"\nThe core functions are defined in fn.tld in your openmrs project, and also documented ","type":"text"},{"text":"here","type":"text","marks":[{"type":"link","attrs":{"href":"http://java.sun.com/products/jsp/jstl/1.1/docs/tlddocs/index.html"}}]},{"text":". It includes functions like length, contains, replace, substring, ...","type":"text"}]},{"type":"paragraph","content":[{"text":"The radius example from earlier:","type":"text"}]},{"type":"codeBlock","content":[{"text":"\n\n A circle with radius ${ i } has area ${ i * i * 3.141592 }\n
\n\n","type":"text"}]},{"type":"paragraph","content":[{"text":"A more interesting example of more tags:","type":"text"}]},{"type":"codeBlock","content":[{"text":"\nThere are ${fn:length(patients)} patients.\n\n
\n ${p.personName} was born on \n \n Yo, dude.\n \n \n Pleased to meet you.\n \n\n","type":"text"}]},{"type":"paragraph","content":[{"text":"Note that you can write your own tag libraries, like openmrs:formatDate. Look at openmrs.tld in the openmrs project, or the htmlwidgets module for an example of how to do this in a module.","type":"text"}]}],"version":1}

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