Velocity中加载vm文件的三种方式
velocitypropertiespath
Velocity中加载vm文件的三种方式:
方式一:加载classpath目录下的vm文件
Properties p =
new
Properties();
p.put(
"file.resource.loader.class"
,
"org.apache.velocity.runtime.resource.loader.ClasspathResourceLoader"
);
Velocity.init(p);
...
Velocity.getTemplate(templateFile);
方式二:根据绝对路径加载,vm文件置于硬盘某分区中,如:d:
//tree.vm
Properties p =
new
Properties();
p.setProperty(VelocityEngine.FILE_RESOURCE_LOADER_PATH,
"d://"
);
Velocity.init(p);
...
Velocity.getTemplate(
"tree.vm"
);
方式三:使用文本文件,如:velocity.properties,配置如下:
#encoding
input.encoding=UTF-
8
output.encoding=UTF-
8
contentType=text/html;charset=UTF-
8
不要指定loader.
再利用如下方式进行加载
Properties p =
new
Properties();
p.load(
this
.getClass().getResourceAsStream(
"/velocity.properties"
));
Velocity.init(p);
...
Velocity.getTemplate(templateFile);
package
com.study.volicity;
import
java.io.IOException;
import
java.io.StringWriter;
import
java.util.Properties;
import
org.apache.velocity.app.Velocity;
import
org.apache.velocity.Template;
import
org.apache.velocity.VelocityContext;
public
class
Test {
public
static
void
main(String args[])
throws
IOException {
Properties pros =
new
Properties();
pros.load(Test.
class
.getClassLoader().getResourceAsStream(
"velocity.properties"
));
Velocity.init(pros);
VelocityContext context =
new
VelocityContext();
context.put(
"name"
,
"Velocity"
);
context.put(
"project"
,
"Jakarta"
);
/* lets render a template 相对项目路径 */
Template template = Velocity.getTemplate(
"/view/header.vm"
);
StringWriter writer =
new
StringWriter();
/* lets make our own string to render */
template.merge(context, writer);
System.out.println(writer);
}
}