//接口
public InputStream loadInvoiceRider(String INVOICE_ID_);
//实现层
@Override
public InputStream loadInvoiceRider(String INVOICE_ID_) {
String sql = "select RIDER_ from MP_INVOICE where INVOICE_ID_ = ?";
return mpJdbcTemplate.queryForObject(sql, new Object[] { INVOICE_ID_ }, new RowMapper<InputStream>() {
public InputStream mapRow(ResultSet rs, int rowNum) throws SQLException {
return rs.getBinaryStream(1);
}
});
}
//控制层
@RequestMapping(value = "loadInvoiceRider")
public void loadInvoiceRider(String INVOICE_ID_, HttpServletRequest request, HttpServletResponse response, HttpSession session) {
Map<String, Object> result = new HashMap<String, Object>();
try {
getOperator(request, session);
InputStream inputStream = invoiceService.loadInvoiceRider(INVOICE_ID_);
response.reset();
ServletOutputStream out = response.getOutputStream();
byte[] content = new byte[65535];
int length = 0;
if (inputStream != null) {
while ((length = inputStream.read(content)) != -1) {
out.write(content, 0, length);
}
}
out.flush();
out.close();
log("admin", "InvoiceController.loadInvoiceRider", INVOICE_ID_, "0", null, request, session);
}
catch (Exception e) {
logger.error(e.getMessage(), e);
result.put("message", getErrorMessage(e, request));
result.put("success", false);
StringWriter stringWriter = new StringWriter();
e.printStackTrace(new PrintWriter(stringWriter));
log("admin", "InvoiceController.loadInvoiceRider", INVOICE_ID_, "1", stringWriter.toString(), request, session);
}
}
前台直接把请求地址，放在图片的src位置
{
xtype : ‘actioncolumn‘,
width : 280,
dataIndex : ‘INVOICE_ID_‘,
text : ‘<spring:message code="INVOICE" />‘,
align : ‘center‘,
renderer : function(value, metaData, record) {
var id = metaData.record.id;
Ext.defer(function() {
Ext.create(‘Ext.Img‘, {
height : 140,
width : 250,
src : ‘loadInvoiceRider.do?INVOICE_ID_=‘ + value,
renderTo : id,
listeners : {
scope : this,
el : {
dblclick : function(e, a) {
var winViewImage = Ext.create(‘Ext.Window‘, {
width : 750,
height : 500,
maximizable : true,//窗体最大化按钮
title : ‘<spring:message code="image" />‘,
layout : "fit", //窗口布局类型
modal : true, //是否模态窗口，默认为false
resizable : false,//调整窗体大小
closeAction : ‘hide‘, //关闭窗体实际上是隐藏窗体并未关闭销毁此窗体对象(节约资源)
plain : true,//窗体主体部分背景颜色透明
draggable : true,//充许拖动窗体
border : false,
items : [ Ext.create(‘Ext.Img‘, {
width : 750,
height : 500,
src : ‘loadInvoiceRider.do?INVOICE_ID_=‘ + value
}) ]
});
winViewImage.show();
}
}
}
})
}, 50);
return Ext.String.format(‘<div id="{0}"></div>‘, id);
}
},
