seam中使用open chart开源图标实例

其实很简单 写入数据 读取就行

创建工具类Context

package com.test;

import java.io.IOException;
import java.util.Map;

import javax.faces.context.ExternalContext;
import javax.faces.context.FacesContext;

 

public class Context {
 public static Map getSessionMap() {
  return FacesContext.getCurrentInstance().getExternalContext()
    .getSessionMap(); 
 }

 public static Map getRequestParameterMap() {
  return FacesContext.getCurrentInstance().getExternalContext()
    .getRequestParameterMap();
 }

 public static FacesContext getContext() {
  return FacesContext.getCurrentInstance();
 }

 public static ExternalContext getExterContext() {
  return FacesContext.getCurrentInstance().getExternalContext();
 }

 public static void redirect(String path) {
  try {
   FacesContext.getCurrentInstance().getExternalContext().redirect(
     path);
  } catch (IOException ex) {
   ex.printStackTrace();
  }
 }

}

 

 

 

文件源操作

package com.test;

import java.io.*;
import javax.servlet.ServletContext;
import com.test.Context;

public class ReadWriteFile {
 public static BufferedReader bufread;
 // 指定文件路径和名称
 private static ServletContext servletContext = (ServletContext) Context.getExterContext().getContext();
 private static String path = servletContext.getRealPath("/")+"\\chartdata\\kenter.txt";
 private static File filename = new File(path);
 private static String readStr = "";
 private static String webPath = "chartdata/kenter.txt";
 
 /**
  * creat
  * @throws IOException
  */
 public static void creatTxtFile() throws IOException {
  System.out.println(path);
  if (!filename.exists()) {
   filename.createNewFile();
   System.err.println(filename + "已创建！");
  }
  
 }

 /**
  * read
  * @return
  */
 public static String readTxtFile() {
  String read;
  FileReader fileread;
  try {
   fileread = new FileReader(filename);
   bufread = new BufferedReader(fileread);
   try {
    while ((read = bufread.readLine()) != null) {
     readStr = readStr + read + "\r\n";
    }
   } catch (IOException e) {
    e.printStackTrace();
   }
  } catch (FileNotFoundException e) {
   e.printStackTrace();
  }
  return readStr;
 }

 /**
  * 以UTF-8的格式写入文件
  *
  * @param fileBody
  * @return
  */
 public static boolean writeUTFFile(String fileBody) {
  FileOutputStream fos = null;
  OutputStreamWriter osw = null;
  try {
   fos = new FileOutputStream(filename);
   osw = new OutputStreamWriter(fos, "UTF-8");
   osw.write(fileBody);
   return true;
  } catch (Exception e) {
   e.printStackTrace();
   return false;
  } finally {
   if (osw != null) {
    try {
     osw.close();
    } catch (IOException e1) {
     e1.printStackTrace();
    }
   }
   if (fos != null) {
    try {
     fos.close();
    } catch (IOException e1) {
     e1.printStackTrace();
    }
   }
  }
 }

 /**
  * replace
  * @param oldStr
  * @param replaceStr
  */
 public static void replaceTxtByStr(String oldStr, String replaceStr) {
  String temp = "";
  try {
   File file = new File(path);
   FileInputStream fis = new FileInputStream(file);
   InputStreamReader isr = new InputStreamReader(fis);
   BufferedReader br = new BufferedReader(isr);
   StringBuffer buf = new StringBuffer();

   // 保存该行前面的内容
   for (int j = 1; (temp = br.readLine()) != null
     && !temp.equals(oldStr); j++) {
    buf = buf.append(temp);
    buf = buf.append(System.getProperty("line.separator"));
   }

   // 将内容插入
   buf = buf.append(replaceStr);

   // 保存该行后面的内容
   while ((temp = br.readLine()) != null) {
    buf = buf.append(System.getProperty("line.separator"));
    buf = buf.append(temp);
   }

   br.close();
   FileOutputStream fos = new FileOutputStream(file);
   PrintWriter pw = new PrintWriter(fos);
   pw.write(buf.toString().toCharArray());
   pw.flush();
   pw.close();
  } catch (IOException e) {
   e.printStackTrace();
  }
 }

 public void setWebPath(String webPath) {
  this.webPath = webPath;
 }

 public static String getWebPath() {
  return webPath;
 }
}

 

 

 

 

seam控制的bean

 

 

package com.bean;

import java.io.File;
import java.io.IOException;
import java.io.Serializable;
import java.net.*;
import org.jboss.seam.ScopeType;
import org.jboss.seam.annotations.Create;
import org.jboss.seam.annotations.Name;
import org.jboss.seam.annotations.Scope;

import com.test.ReadWriteFile;

@Name("userBean")
@Scope(ScopeType.CONVERSATION)
public class UserBean implements Serializable {

 private static final long serialVersionUID = -1836688779616652076L;
 private String name;
 private String job;
 private String chartdata;

 public void setName(String name) {
  this.name = name;
 }

 public String getName() {
  return name;
 }

 @SuppressWarnings("deprecation")
 @Create
 public void init() {
  System.out.println("******");
  String chartdata;
  chartdata = "&title=测试一下呢个图表,{font-size:35px; color: #800000}&"
    + "\r\n";
  chartdata += "&y_legend=CM,12,#736AFF&" + "\r\n";
  chartdata += "&y_ticks=5,10,10&" + "\r\n";
  chartdata += "&bar=50,#9933CC,铺柱形图,12&" + "\r\n";
  chartdata += "&bar_2=50,#339966,绿色柱形图,12&" + "\r\n";
  chartdata += "&line_dot_3=3,#CC3399,线条图,12,5&" + "\r\n";
  chartdata += "&line_hollow_4=2,0x80a033,乱来线条图,12,6&" + "\r\n";
  chartdata += "&values=3,20,5,5,4,5,2,2,5&" + "\r\n";
  chartdata += "&values_2=4,3,2,3,2,3,3,2,3&" + "\r\n";
  chartdata += "&values_3=8,20,8,8,8,8,8,8,8&" + "\r\n";
  chartdata += "&values_4=6,16,6,6,6,6,6,6,6&" + "\r\n";
  chartdata += "&x_labels=一月,二月,三月,四月,五月,六月,七月,八月,九月&" + "\r\n";
  chartdata += "&x_legend=本年度月份,12,#736AFF&" + "\r\n";
  chartdata += "&y_min=0&" + "\r\n";
  chartdata += "&y_max=25&" + "\r\n";
  try {
   ReadWriteFile.creatTxtFile();
   ReadWriteFile.writeUTFFile(chartdata);
  } catch (IOException e) {
   e.printStackTrace();
  }
  
  this.chartdata = ReadWriteFile.getWebPath();
  System.out.println(System.getProperty("user.dir"));
 }

 public String nameItJohn() {
  this.setName("kenter");
  return null;
 }

 public String nameItMark() {
  this.setName("kkkk");
  return null;
 }

 public void setJob(String job) {
  this.job = job;
 }

 public String getJob() {
  return job;
 }

 public void setChartdata(String chartdata) {
  this.chartdata = chartdata;
 }

 public String getChartdata() {
  return chartdata;
 }

}

 

 

 

 

显示页面xhtml

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

<html xmlns="http://www.w3.org/1999/xhtml"
 xmlns:ui="http://java.sun.com/jsf/facelets"
 xmlns:s="http://jboss.com/products/seam/taglib"
 xmlns:h="http://java.sun.com/jsf/html"
 xmlns:f="http://java.sun.com/jsf/core"
 xmlns:rich="http://richfaces.ajax4jsf.org/rich"
 xmlns:a4j="http://richfaces.org/a4j">
 <head>
  <title>测试图表哇</title>
  <meta http-equiv="keywords" content="enter,your,keywords,here" />
  <meta http-equiv="description"
   content="A short description of this page." />
  <meta http-equiv="content-type" content="text/html; charset=UTF-8" />
 </head>
 <body>
  <p>
   <ui:insert name="body">
    <script type="text/javascript" src="js/swfobject.js"></script>
    <object classid="clsid:D27CDB6E-AE6D-11cf-96B8-444553540000"
     codebase="http://download.macromedia.com/pub/shockwave/cabs/flash/swflash.cab#version=7,0,19,0"
     width="500" height="250">
     <param name="movie"
      value="open-flash-chart.swf?data=#{userBean.chartdata}" />
     <param name="quality" value="high" />
     <embed src="open-flash-chart.swf?data=#{userBean.chartdata}"
      quality="high"
      pluginspage="http://www.macromedia.com/go/getflashplayer"
      type="application/x-shockwave-flash" width="500" height="250"></embed>
    </object>

   </ui:insert>
  </p>
 </body>
</html>