解决从springboot配置文件application.properties获取中文乱码
这里因为自带的iso编码格式
需要进行如下操作
新增两个文件重写
package com.java.file.config;
import org.springframework.boot.origin.Origin;
import org.springframework.boot.origin.OriginTrackedValue;
import org.springframework.boot.origin.TextResourceOrigin;
import org.springframework.core.io.Resource;
import org.springframework.util.Assert;
import java.io.Closeable;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.LineNumberReader;
import java.nio.charset.StandardCharsets;
import java.util.LinkedHashMap;
import java.util.Map;
/**
* @Description:
* @Author: qiuxie
* @Create: 2023/7/10 10:57
*/
public class CustomizedOriginTrackedPropertiesLoader {
private final Resource resource;
/**
* Create a new {@link CustomizedOriginTrackedPropertiesLoader} instance.
* @param resource the resource of the {@code .properties} data
*/
CustomizedOriginTrackedPropertiesLoader(Resource resource) {
Assert.notNull(resource, "Resource must not be null");
this.resource = resource;
}
/**
* Load {@code .properties} data and return a map of {@code String} ->
* {@link OriginTrackedValue}.
* @return the loaded properties
* @throws IOException on read error
*/
Map<String, OriginTrackedValue> load() throws IOException {
return load(true);
}
/**
* Load {@code .properties} data and return a map of {@code String} ->
* {@link OriginTrackedValue}.
* @param expandLists if list {@code name[]=a,b,c} shortcuts should be expanded
* @return the loaded properties
* @throws IOException on read error
*/
Map<String, OriginTrackedValue> load(boolean expandLists) throws IOException {
try (CharacterReader reader = new CharacterReader(this.resource)) {
Map<String, OriginTrackedValue> result = new LinkedHashMap<>();
StringBuilder buffer = new StringBuilder();
while (reader.read()) {
String key = loadKey(buffer, reader).trim();
if (expandLists && key.endsWith("[]")) {
key = key.substring(0, key.length() - 2);
int index = 0;
do {
OriginTrackedValue value = loadValue(buffer, reader, true);
put(result, key + "[" + (index++) + "]", value);
if (!reader.isEndOfLine()) {
reader.read();
}
}
while (!reader.isEndOfLine());
}
else {
OriginTrackedValue value = loadValue(buffer, reader, false);
put(result, key, value);
}
}
return result;
}
}
private void put(Map<String, OriginTrackedValue> result, String key, OriginTrackedValue value) {
if (!key.isEmpty()) {
result.put(key, value);
}
}
private String loadKey(StringBuilder buffer, CharacterReader reader) throws IOException {
buffer.setLength(0);
boolean previousWhitespace = false;
while (!reader.isEndOfLine()) {
if (reader.isPropertyDelimiter()) {
reader.read();
return buffer.toString();
}
if (!reader.isWhiteSpace() && previousWhitespace) {
return buffer.toString();
}
previousWhitespace = reader.isWhiteSpace();
buffer.append(reader.getCharacter());
reader.read();
}
return buffer.toString();
}
private OriginTrackedValue loadValue(StringBuilder buffer,CharacterReader reader, boolean splitLists)
throws IOException {
buffer.setLength(0);
while (reader.isWhiteSpace() && !reader.isEndOfLine()) {
reader.read();
}
TextResourceOrigin.Location location = reader.getLocation();
while (!reader.isEndOfLine() && !(splitLists && reader.isListDelimiter())) {
buffer.append(reader.getCharacter());
reader.read();
}
Origin origin = new TextResourceOrigin(this.resource, location);
return OriginTrackedValue.of(buffer.toString(), origin);
}
/**
* Reads characters from the source resource, taking care of skipping comments,
* handling multi-line values and tracking {@code '\'} escapes.
*/
private static class CharacterReader implements Closeable {
private static final String[] ESCAPES = { "trnf", "\t\r\n\f" };
private final LineNumberReader reader;
private int columnNumber = -1;
private boolean escaped;
private int character;
CharacterReader(Resource resource) throws IOException {
this.reader = new LineNumberReader(
new InputStreamReader(resource.getInputStream(), StandardCharsets.UTF_8));
}
@Override
public void close() throws IOException {
this.reader.close();
}
boolean read() throws IOException {
return read(false);
}
boolean read(boolean wrappedLine) throws IOException {
this.escaped = false;
this.character = this.reader.read();
this.columnNumber++;
if (this.columnNumber == 0) {
skipLeadingWhitespace();
if (!wrappedLine) {
skipComment();
}
}
if (this.character == '\\') {
this.escaped = true;
readEscaped();
}
else if (this.character == '\n') {
this.columnNumber = -1;
}
return !isEndOfFile();
}
private void skipLeadingWhitespace() throws IOException {
while (isWhiteSpace()) {
this.character = this.reader.read();
this.columnNumber++;
}
}
private void skipComment() throws IOException {
if (this.character == '#' || this.character == '!') {
while (this.character != '\n' && this.character != -1) {
this.character = this.reader.read();
}
this.columnNumber = -1;
read();
}
}
private void readEscaped() throws IOException {
this.character = this.reader.read();
int escapeIndex = ESCAPES[0].indexOf(this.character);
if (escapeIndex != -1) {
this.character = ESCAPES[1].charAt(escapeIndex);
}
else if (this.character == '\n') {
this.columnNumber = -1;
read(true);
}
else if (this.character == 'u') {
readUnicode();
}
}
private void readUnicode() throws IOException {
this.character = 0;
for (int i = 0; i < 4; i++) {
int digit = this.reader.read();
if (digit >= '0' && digit <= '9') {
this.character = (this.character << 4) + digit - '0';
}
else if (digit >= 'a' && digit <= 'f') {
this.character = (this.character << 4) + digit - 'a' + 10;
}
else if (digit >= 'A' && digit <= 'F') {
this.character = (this.character << 4) + digit - 'A' + 10;
}
else {
throw new IllegalStateException("Malformed \\uxxxx encoding.");
}
}
}
boolean isWhiteSpace() {
return !this.escaped && (this.character == ' ' || this.character == '\t' || this.character == '\f');
}
boolean isEndOfFile() {
return this.character == -1;
}
boolean isEndOfLine() {
return this.character == -1 || (!this.escaped && this.character == '\n');
}
boolean isListDelimiter() {
return !this.escaped && this.character == ',';
}
boolean isPropertyDelimiter() {
return !this.escaped && (this.character == '=' || this.character == ':');
}
char getCharacter() {
return (char) this.character;
}
TextResourceOrigin.Location getLocation() {
return new TextResourceOrigin.Location(this.reader.getLineNumber(), this.columnNumber);
}
}
}
package com.java.file.config;
import org.springframework.boot.env.OriginTrackedMapPropertySource;
import org.springframework.boot.env.PropertySourceLoader;
import org.springframework.core.env.PropertySource;
import org.springframework.core.io.Resource;
import org.springframework.core.io.support.PropertiesLoaderUtils;
import java.io.IOException;
import java.util.Collections;
import java.util.List;
import java.util.Map;
/**
* @Description:
* @Author: qiuxie
* @Create: 2023/7/10 11:21
*/
public class MyPropertiesPropertySourceLoader implements PropertySourceLoader {
private static final String XML_FILE_EXTENSION = ".xml";
@Override
public String[] getFileExtensions() {
return new String[] { "properties", "xml" };
}
@Override
public List<PropertySource<?>> load(String name, Resource resource) throws IOException {
Map<String, ?> properties = loadProperties(resource);
if (properties.isEmpty()) {
return Collections.emptyList();
}
return Collections
.singletonList(new OriginTrackedMapPropertySource(name, Collections.unmodifiableMap(properties), true));
}
@SuppressWarnings({ "unchecked", "rawtypes" })
private Map<String, ?> loadProperties(Resource resource) throws IOException {
String filename = resource.getFilename();
if (filename != null && filename.endsWith(XML_FILE_EXTENSION)) {
return (Map) PropertiesLoaderUtils.loadProperties(resource);
}
return new CustomizedOriginTrackedPropertiesLoader(resource).load();
}
}
将自定义的类加载到容器中
org.springframework.boot.env.PropertySourceLoader=\ com.java.file.config.MyPropertiesPropertySourceLoader
代码部分
@Value("${bank.name.list}")
private List<String> listBankNames;
private boolean isBankNameFlag(String bankName) {
boolean bankNameFlag = false;
log.info("从SpringCloudConfig获取的数据:{}", listBankNames);
for (String listBankName : listBankNames) {
if (bankName.contains(listBankName)) {
bankNameFlag = true;
}
}
return bankNameFlag;
}
最后看下默认的编码格式
