yaksok的博客

public class HttpClientUtil { private static final String HEADER_ACCEPT_ENCODING = "Accept-Encoding"; private static final String ENCODING_GZIP = "gzip"; private HttpClient httpclien

double a = 23.45678; a保留1位小数：Math.round(a * 10)/10.0； a保留2位小数：Math.round(a * 100)/100.0； a保留3位小数：Math.round(a * 1000)/1000.0； 以此类推~~

/**  * 得到本周周一  *   * @return yyyy-MM-dd  */ public static String getMondayOfThisWeek() {  Calendar c = Calendar.getInstance();  int day_of_week = c.get(Calendar.DAY_OF_WEEK) - 1;  if (day_of_we

Integer.parseInt(String.valueOf(value));

一般情况下定义 Integer a1 = 123; Integer a2 = 123; a1 == a2 返回的是true遇到一次特殊情况： 获得的参数为 Integer a1 = 123; 要与存储的常量 public static final Integer A1 = 123;比较 则a1 == A1返回的是false；可将A1改为int类型，则可相等。 A1存储在静态区，a1存

for /D /R %%i in (.) do ( cd %%i type *.java>>D:\allsrc.txtcd .. )

使用Jackson 或者 FastJson来处理String objJson = getPara("obj");PatrolObj obj2 = Jackson.getJson().parse(objJson, PatrolObj.class);

1. jsp页面使用window.location = url+"?"+params;来请求导出api2.在后台方法中，设置导出名与内容与文件名编码格式 response.setContentType("application/octet-stream");  response.setCharacterEncoding("GBK");  try {   response.set

1. import -> Projects from git ->Existing local repository -> add2. 右击项目-> 属性 -> Project Facets -> 勾选java, Dynamic Web Module 按需3. 将lib下jar包右击导入4. build path里将source-> Default