从 http://mirror.bit.edu.cn/apache//velocity/engine/1.7/ 下载 velocity-1.7.zip
解压后将 velocity-1.7-dep.jar copy to GROOVY_HOME/lib/
Vm_test.groovy
import groovy.sql.Sql;
import java.io.*;
import java.util.Properties;
import org.apache.velocity.app.Velocity;
import org.apache.velocity.app.VelocityEngine;
import org.apache.velocity.VelocityContext;
import org.apache.velocity.Template;
import org.apache.velocity.runtime.RuntimeConstants;
import org.apache.velocity.runtime.resource.loader.ClasspathResourceLoader;
import org.apache.velocity.exception.ParseErrorException;
import org.apache.velocity.exception.ResourceNotFoundException;
class Vm_test {
static void main(args){
def fundcode ='';
if (args.size() ==1){
fundcode = args[0];
} else {
println " usage: groovy vm_test fundcode ";
return;
}
assert fundcode.size() ==6
String path = "/jsp/";
String templateFile = "vm/result.vm";
String fileName = path + templateFile;
System.out.println(fileName);
File file = new File(fileName);
if (!file.exists())
{
println("文件不存在");
return;
}
String Driver;
String URL;
String user;
String pass;
try {
Properties props = new Properties();
File infile = new File("./","mysql.properties");
FileInputStream ins = new FileInputStream(infile);
props.load(ins);
ins.close();
Driver = props.getProperty("driver");
URL = props.getProperty("url");
user = props.getProperty("username");
pass = props.getProperty("password");
} catch (IOException ex) {
ex.printStackTrace();
}
Sql db = Sql.newInstance(URL, user, pass, Driver);
def stmt ="select rq,jz,ljjz from jjjz where dm= ? order by rq";
int j =0;
// data model
// Map<String,Object> root = new HashMap<String,Object>();
ArrayList<Map<String, Object>> alist = new ArrayList<Map<String, Object>>();
db.eachRow(stmt,[fundcode]){ r ->
alist.add(['rq':r[0],'jz':r[1],'lljz':r[2]]);
j++;
}
db.close();
// 创建引擎
VelocityEngine ve = new VelocityEngine();
//ve.setProperty(RuntimeConstants.RESOURCE_LOADER, "classpath");
//ve.setProperty("classpath.resource.loader.class", ClasspathResourceLoader.class.getName());
// 设置模板加载路径，这里设置的是vm下
Velocity.setProperty(Velocity.RESOURCE_LOADER, path);
Velocity.setProperty(Velocity.FILE_RESOURCE_LOADER_PATH, path);
Template tp = null;
try {
// 进行初始化操作
ve.init("velocity.properites");
// 加载模板，设定模板编码
tp = ve.getTemplate(templateFile, "gbk");
// 也可以使用
// loadpath是路径地址
// 设置初始化数据
VelocityContext context = new VelocityContext();
context.put("title", "查询基金净值");
context.put("fundcode", fundcode);
context.put("rows", alist);
// outfile
def fn = "${fundcode}.html"
def outfile = new File(fn);
def fos = new FileOutputStream(outfile);
Writer out = new BufferedWriter(new OutputStreamWriter(fos,"GBK"));
// 处理合并
if (tp != null) tp.merge(context, out);
out.flush();
out.close();
println " output ${j} rows";
println " outfile: ${fn}";
}
catch( ResourceNotFoundException rnfe )
{
System.out.println("Example : error : cannot find template " + templateFile );
}
catch( ParseErrorException pee )
{
System.out.println("Example : Syntax error in template " + templateFile + ":" + pee );
}
catch (Exception e) {
e.printStackTrace();
}
}
}vm/result.vm
<!DOCTYPE html>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=GBK" />
<title>查询基金净值 </title>
<style>
table {border-collapse:collapse;}
th,td {border: black solid 1px; font-size:12px; padding-left:5px; white-space:nowrap;}
</style>
</head>
<body>
<h3>$fundcode </h3>
<table>
<thead>
<tr>
<th>日期 </th>
<th>基金净值 </th>
<th>累计净值 </th>
</tr>
</thead>
<tbody>
#foreach( $row in $rows)
<tr>
<td>$row.rq</td>
<td>$row.jz</td>
<td>$row.lljz</td>
</tr>
#end
</tbody>
</table>
</body>
</html>才能直接使用getTemplate("example.vm").如果要放在子目录下,比如放在项目的子目录vm/下,
则必须使用如下代码才行: getTemplate("vm/example.vm");