【Java】 读取Txt文件 处理数据 

@RequestMapping("/importTxt")
    public String readTxtPoints(@RequestParam("file") MultipartFile file){
        String encoding="GBK";
        InputStream in = null;
        if (file.isEmpty()) {
            putInRequest("error", "文件不存在");
        }else{
            try {
                in = file.getInputStream();
                InputStreamReader read = new InputStreamReader(in,encoding);//考虑到编码格式
                BufferedReader bufferedReader = new BufferedReader(read);
                String lineTxt = null;
                int i=0;
                String[] ss=null;
                StringBuilder boundaryPoints=new StringBuilder();
                while((lineTxt = bufferedReader.readLine()) != null){
                    if(i!=0){
                        ss=lineTxt.split("\\,",-1);
                        boundaryPoints.append(ss[0]+","+ss[2]+","+ss[1]+";");
                        
                    }
                    i++;
                }
                if(boundaryPoints.length()>0){
                    boundaryPoints.deleteCharAt(boundaryPoints.length()-1);
                }
                System.out.print(boundaryPoints);               
                read.close();
                putInRequest("boundaryPoints", boundaryPoints);
            } catch (IOException e) {
                // TODO Auto-generated catch block
                e.printStackTrace();
            }
        }
        return "land/importPoints";
    }
<%@ page language="java" contentType="text/html; charset=UTF-8"
	pageEncoding="UTF-8"%>
	<%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core"%>
<%
	String path = request.getContextPath();
%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>导入经纬度</title>
<jsp:include page="/common.jsp"></jsp:include>
<script type="text/javascript">
function check() {  
    var file = $("#file").val();  
    if (file == "" || file.length == 0) {  
        alert("请选择文件路径！");  
        return false;  
    } else {  
    	document.getElementById('sum').click();
       return true;  
    }  
} 
</script>
</head>
<body>
	<form action="<%=path%>/land/importTxt"  method="post" enctype="multipart/form-data">
		<textarea name="boundaryPoints" id="boundaryPoints" cols="85" rows="10" >${boundaryPoints}</textarea>		
		<input
			id="file" name="file" type="file" value="" 
			onchange="document.getElementById('textfield').value=this.value;" />
		<input type="submit" id="sum"
			style="display: none;" />
			<input type="button" class="i_button marie" value="导入"
			onclick=" check()" /> 
	</form>
</body>
</html>

　　格式和数据处理自己定义

效果：

posted @ 2017-04-27 16:26  朝雾轻寒  阅读(831)  评论(0)    收藏  举报