blocks|key|935782|text|使用Apache+Commons文本中的StringSubstitutor。|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|935783|https://commons.apache.org/proper/commons-text/|935784|它会帮你做到这一点(还有它的开源……)|935785|+Map<String,+String>+valuesMap+=+new+HashMap<String,+String>();
+valuesMap.put("animal",+"quick+brown+fox");
+valuesMap.put("target",+"lazy+dog");
+String+templateString+=+"The+${animal}+jumped+over+the+${target}.";
+StringSubstitutor+sub+=+new+StringSubstitutor(valuesMap);
+String+resolvedString+=+sub.replace(templateString);|code-block|syntax|javascript|935786|entityMap|0|LINK|mutability|MUTABLE|url^0|K|H|0|0|1B|0|0|0|0^^$0|@$1|2|3|4|5|6|7|V|8|@$9|W|A|X|B|C]]|D|@]|E|$]]|$1|F|3|G|5|6|7|Y|8|@]|D|@$9|Z|A|10|1|11]]|E|$]]|$1|H|3|I|5|6|7|12|8|@]|D|@]|E|$]]|$1|J|3|K|5|L|7|13|8|@]|D|@]|E|$M|N]]|$1|O|3|-4|5|6|7|14|8|@]|D|@]|E|$]]]|P|$Q|$5|R|S|T|E|$U|G]]]]

Use <code>StringSubstitutor</code> from Apache Commons Text.

<a href="https://commons.apache.org/proper/commons-text/" rel="noreferrer">https://commons.apache.org/proper/commons-text/</a>

It will do it for you (and its open source...)

<pre><code> Map&lt;String, String&gt; valuesMap = new HashMap&lt;String, String&gt;();
 valuesMap.put("animal", "quick brown fox");
 valuesMap.put("target", "lazy dog");
 String templateString = "The ${animal} jumped over the ${target}.";
 StringSubstitutor sub = new StringSubstitutor(valuesMap);
 String resolvedString = sub.replace(templateString);
</code></pre>

blocks|key|1149997|text|看一下java.text.MessageFormat类，MessageFormat获取一组对象，对它们进行格式化，然后将格式化后的字符串插入到模式中的适当位置。|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|1149998|Object[]+params+=+new+Object[]{"hello",+"!"};
String+msg+=+MessageFormat.format("{0}+world+{1}",+params);|code-block|syntax|javascript|1149999|entityMap|0|LINK|mutability|MUTABLE|url|http://download.oracle.com/javase/1.5.0/docs/api/java/text/MessageFormat.html^0|3|N|3|N|0|0|0^^$0|@$1|2|3|4|5|6|7|S|8|@$9|T|A|U|B|C]]|D|@$9|V|A|W|1|X]]|E|$]]|$1|F|3|G|5|H|7|Y|8|@]|D|@]|E|$I|J]]|$1|K|3|-4|5|6|7|Z|8|@]|D|@]|E|$]]]|L|$M|$5|N|O|P|E|$Q|R]]]]

Take a look at the <a href="http://download.oracle.com/javase/1.5.0/docs/api/java/text/MessageFormat.html" rel="noreferrer"><code>java.text.MessageFormat</code></a> class, MessageFormat takes a set of objects, formats them, then inserts the formatted strings into the pattern at the appropriate places. 

<pre><code>Object[] params = new Object[]{"hello", "!"};
String msg = MessageFormat.format("{0} world {1}", params);
</code></pre>

blocks|key|935848|text|有几种表达式语言实现可以为您完成此任务，这可能比使用您自己的实现更可取，例如，请参阅JUEL和MVEL|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|935849|我喜欢并且已经在至少一个项目中成功地使用了MVEL。|935850|另请参阅JSTL/JSP+EL+(Expression+Language)+in+a+non+JSP+(standalone)+context后的Stackflow|935851|entityMap|0|LINK|mutability|MUTABLE|url|http://juel.sourceforge.net/|1|http://mvel.codehaus.org/|2|https://stackoverflow.com/questions/91692/jstl-jsp-el-expression-language-in-a-non-jsp-standalone-context^0|16|4|0|1B|4|1|0|0|4|1V|2|0^^$0|@$1|2|3|4|5|6|7|T|8|@]|9|@$A|U|B|V|1|W]|$A|X|B|Y|1|Z]]|C|$]]|$1|D|3|E|5|6|7|10|8|@]|9|@]|C|$]]|$1|F|3|G|5|6|7|11|8|@]|9|@$A|12|B|13|1|14]]|C|$]]|$1|H|3|-4|5|6|7|15|8|@]|9|@]|C|$]]]|I|$J|$5|K|L|M|C|$N|O]]|P|$5|K|L|M|C|$N|Q]]|R|$5|K|L|M|C|$N|S]]]]

There are a couple of Expression Language implementations out there that does this for you, could be preferable to using your own implementation as or if your requirments grow, see for example <a href="http://juel.sourceforge.net/" rel="nofollow noreferrer">JUEL</a> and <a href="http://mvel.codehaus.org/" rel="nofollow noreferrer">MVEL</a>

I like and have successfully used MVEL in at least one project.

Also see the Stackflow post <a href="https://stackoverflow.com/questions/91692/jstl-jsp-el-expression-language-in-a-non-jsp-standalone-context">JSTL/JSP EL (Expression Language) in a non JSP (standalone) context</a>

blocks|key|1150289|text|就Velocity类语法和其他服务器端模板特性而言，Handlebars.java可能是更好的选择。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1150290|http://jknack.github.io/handlebars.java/|offset|length|1150291|Handlebars+handlebars+=+new+Handlebars();
Template+template+=+handlebars.compileInline("Hello+{{this}}!");
System.out.println(template.apply("Handlebars.java"));|code-block|syntax|javascript|1150292|entityMap|0|LINK|mutability|MUTABLE|url^0|0|0|14|0|0|0^^$0|@$1|2|3|4|5|6|7|R|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|S|8|@]|9|@$D|T|E|U|1|V]]|A|$]]|$1|F|3|G|5|H|7|W|8|@]|9|@]|A|$I|J]]|$1|K|3|-4|5|6|7|X|8|@]|9|@]|A|$]]]|L|$M|$5|N|O|P|A|$Q|C]]]]

Handlebars.java might be a better option in terms of a Velocity-like syntax with other server-side templating features.
<a href="http://jknack.github.io/handlebars.java/" rel="nofollow noreferrer">http://jknack.github.io/handlebars.java/</a>
<pre><code>Handlebars handlebars = new Handlebars();
Template template = handlebars.compileInline(&quot;Hello {{this}}!&quot;);
System.out.println(template.apply(&quot;Handlebars.java&quot;));
</code></pre>

blocks|key|935909|text|我创建了这个使用普通Java的实用程序。它结合了两种格式...来自String.format的{}和%25s风格...到一个方法调用中。请注意，它只替换空的{}括号，而不是{someWord}。|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|935910|public+class+LogUtils+{

++++public+static+String+populate(String+log,+Object...+objects)+{
++++++++log+=+log.replaceAll("\\{\\}",+"%25s");
++++++++return+String.format(log,+objects);
++++}

++++public+static+void+main(String[]+args)+{
++++++++System.out.println(populate("x+=+%25s,+y+={}",+5,+4));;
++++}

}|code-block|syntax|javascript|935911|entityMap^0|1B|2|1E|2|24|2|2C|A|0|0^^$0|@$1|2|3|4|5|6|7|M|8|@$9|N|A|O|B|C]|$9|P|A|Q|B|C]|$9|R|A|S|B|C]|$9|T|A|U|B|C]]|D|@]|E|$]]|$1|F|3|G|5|H|7|V|8|@]|D|@]|E|$I|J]]|$1|K|3|-4|5|6|7|W|8|@]|D|@]|E|$]]]|L|$]]

I created this utility that uses vanilla Java. It combines two formats... <code>{}</code> and <code>%s</code> style from String.format.... into one method call. Please note it only replaces empty <code>{}</code> brackets, not <code>{someWord}</code>.
<pre><code>public class LogUtils {

 public static String populate(String log, Object... objects) {
 log = log.replaceAll(&quot;\\{\\}&quot;, &quot;%s&quot;);
 return String.format(log, objects);
 }

 public static void main(String[] args) {
 System.out.println(populate(&quot;x = %s, y ={}&quot;, 5, 4));;
 }

}
</code></pre>

blocks|key|1150047|text|没有任何东西可以与速度相媲美，因为速度正是为了解决这个问题而编写的。您可以尝试的最接近的方法是查看格式化程序|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1150048|http://cupi2.uniandes.edu.co/site/images/recursos/javadoc/j2se/1.5.0/docs/api/java/util/Formatter.html|offset|length|1150049|然而，据我所知，这个格式化程序是为了在Java中提供类似于C的格式化选项而创建的，所以它可能不会让您感到困扰，但欢迎您尝试:)。|1150050|entityMap|0|LINK|mutability|MUTABLE|url^0|0|0|2U|0|0|0^^$0|@$1|2|3|4|5|6|7|O|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|P|8|@]|9|@$D|Q|E|R|1|S]]|A|$]]|$1|F|3|G|5|6|7|T|8|@]|9|@]|A|$]]|$1|H|3|-4|5|6|7|U|8|@]|9|@]|A|$]]]|I|$J|$5|K|L|M|A|$N|C]]]]

There is nothing out of the box that is comparable to velocity since velocity was written to solve exactly that problem. The closest thing you can try is looking into the Formatter

<a href="http://cupi2.uniandes.edu.co/site/images/recursos/javadoc/j2se/1.5.0/docs/api/java/util/Formatter.html" rel="nofollow noreferrer">http://cupi2.uniandes.edu.co/site/images/recursos/javadoc/j2se/1.5.0/docs/api/java/util/Formatter.html</a>

However the formatter as far as I know was created to provide C like formatting options in Java so it may not scratch exactly your itch but you are welcome to try :).

blocks|key|935870|text|我使用java中的GroovyShell与Groovy+GString一起解析模板：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|935871|Binding+binding+=+new+Binding();
GroovyShell+gs+=+new+GroovyShell(binding);
//+this+JSONObject+can+also+be+replaced+by+any+Java+Object
JSONObject+obj+=+new+JSONObject();
obj.put("key",+"value");
binding.setProperty("obj",+obj)
String+str+=+"${obj.key}";
String+exp+=+String.format("\"%25s\".toString()",+str);
String+res+=+(String)+gs.evaluate(exp);
//+value
System.out.println(str);|code-block|syntax|javascript|935872|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

I use GroovyShell in java to parse template with Groovy GString:

<pre><code>Binding binding = new Binding();
GroovyShell gs = new GroovyShell(binding);
// this JSONObject can also be replaced by any Java Object
JSONObject obj = new JSONObject();
obj.put("key", "value");
binding.setProperty("obj", obj)
String str = "${obj.key}";
String exp = String.format("\"%s\".toString()", str);
String res = (String) gs.evaluate(exp);
// value
System.out.println(str);
</code></pre>

Is there any <code>String</code> replacement mechanism in Java, where I can pass objects with a text, and it replaces the string as it occurs. 
For example, the text is :

<pre><code>Hello ${user.name},
 Welcome to ${site.name}. 
</code></pre>

The objects I have are <code>"user"</code> and <code>"site"</code>. I want to replace the strings given inside <code>${}</code> with its equivalent values from the objects. This is same as we replace objects in a velocity template.

String replacement in java, similar to a velocity template

在Java语言中有没有String替换机制，我可以用文本传递对象，当字符串出现时，它就会替换字符串。例如，文本为：Hello ${user.name},    Welcome to ${site.name}. 我拥有的对象是"user"和"site"。我想用对象中的等价值替换${}中给出的字符串。这与我们替换速度模板中的对象相同。

问java中的字符串替换，类似于速度模板
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